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Finding the Fourth Proportional to 145,595.72, 218,394.93 and 45,753.71

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Solution

The fourth proportional to 145,595.72, 218,394.93 and 45,753.71 is: 68,630.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,595.72 : 218,394.93 = 45,753.71 : x
  2. Step 2: Convert to fraction form
    145,595.72/218,394.93 = 45,753.71/x
  3. Step 3: Cross multiply
    145,595.72x = 218,394.93 × 45,753.71
  4. Step 4: Simplify right side
    145,595.72x = 9,992,377,200.72
  5. Step 5: Solve for x
    x = 9,992,377,200.72/145,595.72
  6. Step 6: Final answer
    x = 68,630.98

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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.