Home / 125,490.18-173,176.56-68,129.46

Finding the Fourth Proportional to 125,490.18, 173,176.56 and 68,129.46

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Solution

The fourth proportional to 125,490.18, 173,176.56 and 68,129.46 is: 94,018.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,490.18 : 173,176.56 = 68,129.46 : x
  2. Step 2: Convert to fraction form
    125,490.18/173,176.56 = 68,129.46/x
  3. Step 3: Cross multiply
    125,490.18x = 173,176.56 × 68,129.46
  4. Step 4: Simplify right side
    125,490.18x = 11,798,425,517.46
  5. Step 5: Solve for x
    x = 11,798,425,517.46/125,490.18
  6. Step 6: Final answer
    x = 94,018.72

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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.