Home / 131,800.40-197,831.82-72,663.92

Finding the Fourth Proportional to 131,800.40, 197,831.82 and 72,663.92

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Solution

The fourth proportional to 131,800.40, 197,831.82 and 72,663.92 is: 109,068.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,800.40 : 197,831.82 = 72,663.92 : x
  2. Step 2: Convert to fraction form
    131,800.40/197,831.82 = 72,663.92/x
  3. Step 3: Cross multiply
    131,800.40x = 197,831.82 × 72,663.92
  4. Step 4: Simplify right side
    131,800.40x = 14,375,235,541.93
  5. Step 5: Solve for x
    x = 14,375,235,541.93/131,800.40
  6. Step 6: Final answer
    x = 109,068.22

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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.