Home / 125,131.50-172,681.56-68,543.10

Finding the Fourth Proportional to 125,131.50, 172,681.56 and 68,543.10

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Solution

The fourth proportional to 125,131.50, 172,681.56 and 68,543.10 is: 94,589.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,131.50 : 172,681.56 = 68,543.10 : x
  2. Step 2: Convert to fraction form
    125,131.50/172,681.56 = 68,543.10/x
  3. Step 3: Cross multiply
    125,131.50x = 172,681.56 × 68,543.10
  4. Step 4: Simplify right side
    125,131.50x = 11,836,129,435.24
  5. Step 5: Solve for x
    x = 11,836,129,435.24/125,131.50
  6. Step 6: Final answer
    x = 94,589.53

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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.