Home / 180,712.92-249,389.28-100,132.86

Finding the Fourth Proportional to 180,712.92, 249,389.28 and 100,132.86

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Solution

The fourth proportional to 180,712.92, 249,389.28 and 100,132.86 is: 138,186.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,712.92 : 249,389.28 = 100,132.86 : x
  2. Step 2: Convert to fraction form
    180,712.92/249,389.28 = 100,132.86/x
  3. Step 3: Cross multiply
    180,712.92x = 249,389.28 × 100,132.86
  4. Step 4: Simplify right side
    180,712.92x = 24,972,061,859.74
  5. Step 5: Solve for x
    x = 24,972,061,859.74/180,712.92
  6. Step 6: Final answer
    x = 138,186.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.