Home / 351,421.16-527,131.81-126,781.52

Finding the Fourth Proportional to 351,421.16, 527,131.81 and 126,781.52

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Solution

The fourth proportional to 351,421.16, 527,131.81 and 126,781.52 is: 190,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,421.16 : 527,131.81 = 126,781.52 : x
  2. Step 2: Convert to fraction form
    351,421.16/527,131.81 = 126,781.52/x
  3. Step 3: Cross multiply
    351,421.16x = 527,131.81 × 126,781.52
  4. Step 4: Simplify right side
    351,421.16x = 66,830,571,136.28
  5. Step 5: Solve for x
    x = 66,830,571,136.28/351,421.16
  6. Step 6: Final answer
    x = 190,172.30

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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.