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Finding the Fourth Proportional to 101,246.52, 151,881.94 and 42,122.20

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Solution

The fourth proportional to 101,246.52, 151,881.94 and 42,122.20 is: 63,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,246.52 : 151,881.94 = 42,122.20 : x
  2. Step 2: Convert to fraction form
    101,246.52/151,881.94 = 42,122.20/x
  3. Step 3: Cross multiply
    101,246.52x = 151,881.94 × 42,122.20
  4. Step 4: Simplify right side
    101,246.52x = 6,397,601,453.07
  5. Step 5: Solve for x
    x = 6,397,601,453.07/101,246.52
  6. Step 6: Final answer
    x = 63,188.36

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1.5x scale

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.