Home / 99,831.26-137,766.08-54,509.10

Finding the Fourth Proportional to 99,831.26, 137,766.08 and 54,509.10

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Solution

The fourth proportional to 99,831.26, 137,766.08 and 54,509.10 is: 75,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,831.26 : 137,766.08 = 54,509.10 : x
  2. Step 2: Convert to fraction form
    99,831.26/137,766.08 = 54,509.10/x
  3. Step 3: Cross multiply
    99,831.26x = 137,766.08 × 54,509.10
  4. Step 4: Simplify right side
    99,831.26x = 7,509,505,031.33
  5. Step 5: Solve for x
    x = 7,509,505,031.33/99,831.26
  6. Step 6: Final answer
    x = 75,221.98

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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.