Home / 130,952.70-196,095.33-86,443.61

Finding the Fourth Proportional to 130,952.70, 196,095.33 and 86,443.61

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Solution

The fourth proportional to 130,952.70, 196,095.33 and 86,443.61 is: 129,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,952.70 : 196,095.33 = 86,443.61 : x
  2. Step 2: Convert to fraction form
    130,952.70/196,095.33 = 86,443.61/x
  3. Step 3: Cross multiply
    130,952.70x = 196,095.33 × 86,443.61
  4. Step 4: Simplify right side
    130,952.70x = 16,951,187,248.86
  5. Step 5: Solve for x
    x = 16,951,187,248.86/130,952.70
  6. Step 6: Final answer
    x = 129,445.11

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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.