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Finding the Fourth Proportional to 145,392.66, 218,088.74 and 45,560.52

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Solution

The fourth proportional to 145,392.66, 218,088.74 and 45,560.52 is: 68,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,392.66 : 218,088.74 = 45,560.52 : x
  2. Step 2: Convert to fraction form
    145,392.66/218,088.74 = 45,560.52/x
  3. Step 3: Cross multiply
    145,392.66x = 218,088.74 × 45,560.52
  4. Step 4: Simplify right side
    145,392.66x = 9,936,235,082.30
  5. Step 5: Solve for x
    x = 9,936,235,082.30/145,392.66
  6. Step 6: Final answer
    x = 68,340.69

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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.