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Finding the Fourth Proportional to 101,424.38, 151,556.56 and 77,275.98

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Solution

The fourth proportional to 101,424.38, 151,556.56 and 77,275.98 is: 115,472.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,424.38 : 151,556.56 = 77,275.98 : x
  2. Step 2: Convert to fraction form
    101,424.38/151,556.56 = 77,275.98/x
  3. Step 3: Cross multiply
    101,424.38x = 151,556.56 × 77,275.98
  4. Step 4: Simplify right side
    101,424.38x = 11,711,681,699.43
  5. Step 5: Solve for x
    x = 11,711,681,699.43/101,424.38
  6. Step 6: Final answer
    x = 115,472.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.