Home / 126,224.30-173,985.11-109,829.55

Finding the Fourth Proportional to 126,224.30, 173,985.11 and 109,829.55

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Solution

The fourth proportional to 126,224.30, 173,985.11 and 109,829.55 is: 151,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,224.30 : 173,985.11 = 109,829.55 : x
  2. Step 2: Convert to fraction form
    126,224.30/173,985.11 = 109,829.55/x
  3. Step 3: Cross multiply
    126,224.30x = 173,985.11 × 109,829.55
  4. Step 4: Simplify right side
    126,224.30x = 19,108,706,002.95
  5. Step 5: Solve for x
    x = 19,108,706,002.95/126,224.30
  6. Step 6: Final answer
    x = 151,386.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.