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Finding the Fourth Proportional to 101,909.80, 152,828.33 and 41,920.75

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Solution

The fourth proportional to 101,909.80, 152,828.33 and 41,920.75 is: 62,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,909.80 : 152,828.33 = 41,920.75 : x
  2. Step 2: Convert to fraction form
    101,909.80/152,828.33 = 41,920.75/x
  3. Step 3: Cross multiply
    101,909.80x = 152,828.33 × 41,920.75
  4. Step 4: Simplify right side
    101,909.80x = 6,406,677,336.62
  5. Step 5: Solve for x
    x = 6,406,677,336.62/101,909.80
  6. Step 6: Final answer
    x = 62,866.15

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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.