Home / 102,680.70-153,999.45-43,518.30

Finding the Fourth Proportional to 102,680.70, 153,999.45 and 43,518.30

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Solution

The fourth proportional to 102,680.70, 153,999.45 and 43,518.30 is: 65,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,680.70 : 153,999.45 = 43,518.30 : x
  2. Step 2: Convert to fraction form
    102,680.70/153,999.45 = 43,518.30/x
  3. Step 3: Cross multiply
    102,680.70x = 153,999.45 × 43,518.30
  4. Step 4: Simplify right side
    102,680.70x = 6,701,794,264.94
  5. Step 5: Solve for x
    x = 6,701,794,264.94/102,680.70
  6. Step 6: Final answer
    x = 65,268.30

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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.