Home / 90,872.28-125,139.13-70,695.18

Finding the Fourth Proportional to 90,872.28, 125,139.13 and 70,695.18

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Solution

The fourth proportional to 90,872.28, 125,139.13 and 70,695.18 is: 97,353.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,872.28 : 125,139.13 = 70,695.18 : x
  2. Step 2: Convert to fraction form
    90,872.28/125,139.13 = 70,695.18/x
  3. Step 3: Cross multiply
    90,872.28x = 125,139.13 × 70,695.18
  4. Step 4: Simplify right side
    90,872.28x = 8,846,733,143.66
  5. Step 5: Solve for x
    x = 8,846,733,143.66/90,872.28
  6. Step 6: Final answer
    x = 97,353.48

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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.