Home / 425,577.26-638,459.25-126,081.24

Finding the Fourth Proportional to 425,577.26, 638,459.25 and 126,081.24

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Solution

The fourth proportional to 425,577.26, 638,459.25 and 126,081.24 is: 189,149.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,577.26 : 638,459.25 = 126,081.24 : x
  2. Step 2: Convert to fraction form
    425,577.26/638,459.25 = 126,081.24/x
  3. Step 3: Cross multiply
    425,577.26x = 638,459.25 × 126,081.24
  4. Step 4: Simplify right side
    425,577.26x = 80,497,733,929.47
  5. Step 5: Solve for x
    x = 80,497,733,929.47/425,577.26
  6. Step 6: Final answer
    x = 189,149.52

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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.