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Finding the Fourth Proportional to 145,402.62, 218,104.00 and 45,570.59

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Solution

The fourth proportional to 145,402.62, 218,104.00 and 45,570.59 is: 68,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,402.62 : 218,104.00 = 45,570.59 : x
  2. Step 2: Convert to fraction form
    145,402.62/218,104.00 = 45,570.59/x
  3. Step 3: Cross multiply
    145,402.62x = 218,104.00 × 45,570.59
  4. Step 4: Simplify right side
    145,402.62x = 9,939,126,756.91
  5. Step 5: Solve for x
    x = 9,939,126,756.91/145,402.62
  6. Step 6: Final answer
    x = 68,355.90

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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.