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Finding the Fourth Proportional to 145,898.15, 218,847.25 and 112,666.69

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Solution

The fourth proportional to 145,898.15, 218,847.25 and 112,666.69 is: 169,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,898.15 : 218,847.25 = 112,666.69 : x
  2. Step 2: Convert to fraction form
    145,898.15/218,847.25 = 112,666.69/x
  3. Step 3: Cross multiply
    145,898.15x = 218,847.25 × 112,666.69
  4. Step 4: Simplify right side
    145,898.15x = 24,656,795,273.10
  5. Step 5: Solve for x
    x = 24,656,795,273.10/145,898.15
  6. Step 6: Final answer
    x = 169,000.05

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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.