Home / 99,831.20-137,746.99-63,547.25

Finding the Fourth Proportional to 99,831.20, 137,746.99 and 63,547.25

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Solution

The fourth proportional to 99,831.20, 137,746.99 and 63,547.25 is: 87,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.20 : 137,746.99 = 63,547.25 : x
  2. Step 2: Convert to fraction form
    99,831.20/137,746.99 = 63,547.25/x
  3. Step 3: Cross multiply
    99,831.20x = 137,746.99 × 63,547.25
  4. Step 4: Simplify right side
    99,831.20x = 8,753,442,595.78
  5. Step 5: Solve for x
    x = 8,753,442,595.78/99,831.20
  6. Step 6: Final answer
    x = 87,682.43

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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.