Home / 125,505.14-173,199.21-68,921.78

Finding the Fourth Proportional to 125,505.14, 173,199.21 and 68,921.78

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Solution

The fourth proportional to 125,505.14, 173,199.21 and 68,921.78 is: 95,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,505.14 : 173,199.21 = 68,921.78 : x
  2. Step 2: Convert to fraction form
    125,505.14/173,199.21 = 68,921.78/x
  3. Step 3: Cross multiply
    125,505.14x = 173,199.21 × 68,921.78
  4. Step 4: Simplify right side
    125,505.14x = 11,937,197,847.79
  5. Step 5: Solve for x
    x = 11,937,197,847.79/125,505.14
  6. Step 6: Final answer
    x = 95,113.22

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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.