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Finding the Fourth Proportional to 101,329.07, 151,911.54 and 42,209.00

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Solution

The fourth proportional to 101,329.07, 151,911.54 and 42,209.00 is: 63,279.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,329.07 : 151,911.54 = 42,209.00 : x
  2. Step 2: Convert to fraction form
    101,329.07/151,911.54 = 42,209.00/x
  3. Step 3: Cross multiply
    101,329.07x = 151,911.54 × 42,209.00
  4. Step 4: Simplify right side
    101,329.07x = 6,412,033,432.30
  5. Step 5: Solve for x
    x = 6,412,033,432.30/101,329.07
  6. Step 6: Final answer
    x = 63,279.31

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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.