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Finding the Fourth Proportional to 145,437.91, 218,156.83 and 45,598.61

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Solution

The fourth proportional to 145,437.91, 218,156.83 and 45,598.61 is: 68,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,437.91 : 218,156.83 = 45,598.61 : x
  2. Step 2: Convert to fraction form
    145,437.91/218,156.83 = 45,598.61/x
  3. Step 3: Cross multiply
    145,437.91x = 218,156.83 × 45,598.61
  4. Step 4: Simplify right side
    145,437.91x = 9,947,648,210.01
  5. Step 5: Solve for x
    x = 9,947,648,210.01/145,437.91
  6. Step 6: Final answer
    x = 68,397.90

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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.