Home / 102,311,999.80-153,467,999.70-89,173,670.20

Finding the Fourth Proportional to 102,311,999.80, 153,467,999.70 and 89,173,670.20

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Solution

The fourth proportional to 102,311,999.80, 153,467,999.70 and 89,173,670.20 is: 133,760,505.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,311,999.80 : 153,467,999.70 = 89,173,670.20 : x
  2. Step 2: Convert to fraction form
    102,311,999.80/153,467,999.70 = 89,173,670.20/x
  3. Step 3: Cross multiply
    102,311,999.80x = 153,467,999.70 × 89,173,670.20
  4. Step 4: Simplify right side
    102,311,999.80x = 13,685,304,791,501,498
  5. Step 5: Solve for x
    x = 13,685,304,791,501,498/102,311,999.80
  6. Step 6: Final answer
    x = 133,760,505.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.