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Finding the Fourth Proportional to 151,679.70, 227,519.55 and 77,030.10

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Solution

The fourth proportional to 151,679.70, 227,519.55 and 77,030.10 is: 115,545.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,679.70 : 227,519.55 = 77,030.10 : x
  2. Step 2: Convert to fraction form
    151,679.70/227,519.55 = 77,030.10/x
  3. Step 3: Cross multiply
    151,679.70x = 227,519.55 × 77,030.10
  4. Step 4: Simplify right side
    151,679.70x = 17,525,853,688.46
  5. Step 5: Solve for x
    x = 17,525,853,688.46/151,679.70
  6. Step 6: Final answer
    x = 115,545.15

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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.