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Finding the Fourth Proportional to 502,113.39, 753,169.68 and 128,136.39

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Solution

The fourth proportional to 502,113.39, 753,169.68 and 128,136.39 is: 192,204.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,113.39 : 753,169.68 = 128,136.39 : x
  2. Step 2: Convert to fraction form
    502,113.39/753,169.68 = 128,136.39/x
  3. Step 3: Cross multiply
    502,113.39x = 753,169.68 × 128,136.39
  4. Step 4: Simplify right side
    502,113.39x = 96,508,443,852.66
  5. Step 5: Solve for x
    x = 96,508,443,852.66/502,113.39
  6. Step 6: Final answer
    x = 192,204.48

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Similar ratio
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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.