Home / 149,031.12-223,561.26-54,287.04

Finding the Fourth Proportional to 149,031.12, 223,561.26 and 54,287.04

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Solution

The fourth proportional to 149,031.12, 223,561.26 and 54,287.04 is: 81,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,031.12 : 223,561.26 = 54,287.04 : x
  2. Step 2: Convert to fraction form
    149,031.12/223,561.26 = 54,287.04/x
  3. Step 3: Cross multiply
    149,031.12x = 223,561.26 × 54,287.04
  4. Step 4: Simplify right side
    149,031.12x = 12,136,479,064.07
  5. Step 5: Solve for x
    x = 12,136,479,064.07/149,031.12
  6. Step 6: Final answer
    x = 81,435.87

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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.