Home / 127,680.59-191,054.33-75,114.83

Finding the Fourth Proportional to 127,680.59, 191,054.33 and 75,114.83

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Solution

The fourth proportional to 127,680.59, 191,054.33 and 75,114.83 is: 112,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,680.59 : 191,054.33 = 75,114.83 : x
  2. Step 2: Convert to fraction form
    127,680.59/191,054.33 = 75,114.83/x
  3. Step 3: Cross multiply
    127,680.59x = 191,054.33 × 75,114.83
  4. Step 4: Simplify right side
    127,680.59x = 14,351,013,143.14
  5. Step 5: Solve for x
    x = 14,351,013,143.14/127,680.59
  6. Step 6: Final answer
    x = 112,397.77

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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.