Home / 145,614.26-218,421.30-40,433.20

Finding the Fourth Proportional to 145,614.26, 218,421.30 and 40,433.20

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Solution

The fourth proportional to 145,614.26, 218,421.30 and 40,433.20 is: 60,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,614.26 : 218,421.30 = 40,433.20 : x
  2. Step 2: Convert to fraction form
    145,614.26/218,421.30 = 40,433.20/x
  3. Step 3: Cross multiply
    145,614.26x = 218,421.30 × 40,433.20
  4. Step 4: Simplify right side
    145,614.26x = 8,831,472,107.16
  5. Step 5: Solve for x
    x = 8,831,472,107.16/145,614.26
  6. Step 6: Final answer
    x = 60,649.78

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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.