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Finding the Fourth Proportional to 101,330.53, 151,982.84 and 42,155.17

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Solution

The fourth proportional to 101,330.53, 151,982.84 and 42,155.17 is: 63,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,330.53 : 151,982.84 = 42,155.17 : x
  2. Step 2: Convert to fraction form
    101,330.53/151,982.84 = 42,155.17/x
  3. Step 3: Cross multiply
    101,330.53x = 151,982.84 × 42,155.17
  4. Step 4: Simplify right side
    101,330.53x = 6,406,862,246.51
  5. Step 5: Solve for x
    x = 6,406,862,246.51/101,330.53
  6. Step 6: Final answer
    x = 63,227.36

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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.