Home / 499,031.16-748,552.68-139,180.12

Finding the Fourth Proportional to 499,031.16, 748,552.68 and 139,180.12

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Solution

The fourth proportional to 499,031.16, 748,552.68 and 139,180.12 is: 208,771.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,031.16 : 748,552.68 = 139,180.12 : x
  2. Step 2: Convert to fraction form
    499,031.16/748,552.68 = 139,180.12/x
  3. Step 3: Cross multiply
    499,031.16x = 748,552.68 × 139,180.12
  4. Step 4: Simplify right side
    499,031.16x = 104,183,649,957.34
  5. Step 5: Solve for x
    x = 104,183,649,957.34/499,031.16
  6. Step 6: Final answer
    x = 208,771.83

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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.