Home / 149,720.80-224,581.20-138,895.15

Finding the Fourth Proportional to 149,720.80, 224,581.20 and 138,895.15

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Solution

The fourth proportional to 149,720.80, 224,581.20 and 138,895.15 is: 208,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,720.80 : 224,581.20 = 138,895.15 : x
  2. Step 2: Convert to fraction form
    149,720.80/224,581.20 = 138,895.15/x
  3. Step 3: Cross multiply
    149,720.80x = 224,581.20 × 138,895.15
  4. Step 4: Simplify right side
    149,720.80x = 31,193,239,461.18
  5. Step 5: Solve for x
    x = 31,193,239,461.18/149,720.80
  6. Step 6: Final answer
    x = 208,342.73

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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.