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Finding the Fourth Proportional to 144,549.53, 216,731.79 and 69,520.25

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Solution

The fourth proportional to 144,549.53, 216,731.79 and 69,520.25 is: 104,235.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,549.53 : 216,731.79 = 69,520.25 : x
  2. Step 2: Convert to fraction form
    144,549.53/216,731.79 = 69,520.25/x
  3. Step 3: Cross multiply
    144,549.53x = 216,731.79 × 69,520.25
  4. Step 4: Simplify right side
    144,549.53x = 15,067,247,140.09
  5. Step 5: Solve for x
    x = 15,067,247,140.09/144,549.53
  6. Step 6: Final answer
    x = 104,235.88

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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.