Home / 129,831.60-194,689.80-59,732.40

Finding the Fourth Proportional to 129,831.60, 194,689.80 and 59,732.40

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Solution

The fourth proportional to 129,831.60, 194,689.80 and 59,732.40 is: 89,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,831.60 : 194,689.80 = 59,732.40 : x
  2. Step 2: Convert to fraction form
    129,831.60/194,689.80 = 59,732.40/x
  3. Step 3: Cross multiply
    129,831.60x = 194,689.80 × 59,732.40
  4. Step 4: Simplify right side
    129,831.60x = 11,629,289,009.52
  5. Step 5: Solve for x
    x = 11,629,289,009.52/129,831.60
  6. Step 6: Final answer
    x = 89,572.10

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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.