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Finding the Fourth Proportional to 152,074.04, 209,778 and 88,404.80

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Solution

The fourth proportional to 152,074.04, 209,778 and 88,404.80 is: 121,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,074.04 : 209,778 = 88,404.80 : x
  2. Step 2: Convert to fraction form
    152,074.04/209,778 = 88,404.80/x
  3. Step 3: Cross multiply
    152,074.04x = 209,778 × 88,404.80
  4. Step 4: Simplify right side
    152,074.04x = 18,545,382,134.40
  5. Step 5: Solve for x
    x = 18,545,382,134.40/152,074.04
  6. Step 6: Final answer
    x = 121,949.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.