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Finding the Fourth Proportional to 100,999.80, 151,498.76 and 38,670.30

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Solution

The fourth proportional to 100,999.80, 151,498.76 and 38,670.30 is: 58,005.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,999.80 : 151,498.76 = 38,670.30 : x
  2. Step 2: Convert to fraction form
    100,999.80/151,498.76 = 38,670.30/x
  3. Step 3: Cross multiply
    100,999.80x = 151,498.76 × 38,670.30
  4. Step 4: Simplify right side
    100,999.80x = 5,858,502,595.50
  5. Step 5: Solve for x
    x = 5,858,502,595.50/100,999.80
  6. Step 6: Final answer
    x = 58,005.09

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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.