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Finding the Fourth Proportional to 145,713.66, 218,570.88 and 40,532.64

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Solution

The fourth proportional to 145,713.66, 218,570.88 and 40,532.64 is: 60,799.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,713.66 : 218,570.88 = 40,532.64 : x
  2. Step 2: Convert to fraction form
    145,713.66/218,570.88 = 40,532.64/x
  3. Step 3: Cross multiply
    145,713.66x = 218,570.88 × 40,532.64
  4. Step 4: Simplify right side
    145,713.66x = 8,859,254,793.52
  5. Step 5: Solve for x
    x = 8,859,254,793.52/145,713.66
  6. Step 6: Final answer
    x = 60,799.07

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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.