Home / 125,403.72-173,057.22-68,818.20

Finding the Fourth Proportional to 125,403.72, 173,057.22 and 68,818.20

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Solution

The fourth proportional to 125,403.72, 173,057.22 and 68,818.20 is: 94,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,403.72 : 173,057.22 = 68,818.20 : x
  2. Step 2: Convert to fraction form
    125,403.72/173,057.22 = 68,818.20/x
  3. Step 3: Cross multiply
    125,403.72x = 173,057.22 × 68,818.20
  4. Step 4: Simplify right side
    125,403.72x = 11,909,486,377.40
  5. Step 5: Solve for x
    x = 11,909,486,377.40/125,403.72
  6. Step 6: Final answer
    x = 94,969.16

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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.