Home / 131,665.14-197,497.71-72,470.34

Finding the Fourth Proportional to 131,665.14, 197,497.71 and 72,470.34

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Solution

The fourth proportional to 131,665.14, 197,497.71 and 72,470.34 is: 108,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,665.14 : 197,497.71 = 72,470.34 : x
  2. Step 2: Convert to fraction form
    131,665.14/197,497.71 = 72,470.34/x
  3. Step 3: Cross multiply
    131,665.14x = 197,497.71 × 72,470.34
  4. Step 4: Simplify right side
    131,665.14x = 14,312,726,192.92
  5. Step 5: Solve for x
    x = 14,312,726,192.92/131,665.14
  6. Step 6: Final answer
    x = 108,705.51

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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.