Home / 145,748.20-218,103.90-101,165.80

Finding the Fourth Proportional to 145,748.20, 218,103.90 and 101,165.80

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Solution

The fourth proportional to 145,748.20, 218,103.90 and 101,165.80 is: 151,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,748.20 : 218,103.90 = 101,165.80 : x
  2. Step 2: Convert to fraction form
    145,748.20/218,103.90 = 101,165.80/x
  3. Step 3: Cross multiply
    145,748.20x = 218,103.90 × 101,165.80
  4. Step 4: Simplify right side
    145,748.20x = 22,064,655,526.62
  5. Step 5: Solve for x
    x = 22,064,655,526.62/145,748.20
  6. Step 6: Final answer
    x = 151,388.87

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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.