Home / 126,244.20-174,280.13-78,512.93

Finding the Fourth Proportional to 126,244.20, 174,280.13 and 78,512.93

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Solution

The fourth proportional to 126,244.20, 174,280.13 and 78,512.93 is: 108,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,244.20 : 174,280.13 = 78,512.93 : x
  2. Step 2: Convert to fraction form
    126,244.20/174,280.13 = 78,512.93/x
  3. Step 3: Cross multiply
    126,244.20x = 174,280.13 × 78,512.93
  4. Step 4: Simplify right side
    126,244.20x = 13,683,243,647.08
  5. Step 5: Solve for x
    x = 13,683,243,647.08/126,244.20
  6. Step 6: Final answer
    x = 108,387.11

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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.