Home / 86,138.17-129,207.25-26,974.15

Finding the Fourth Proportional to 86,138.17, 129,207.25 and 26,974.15

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Solution

The fourth proportional to 86,138.17, 129,207.25 and 26,974.15 is: 40,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,138.17 : 129,207.25 = 26,974.15 : x
  2. Step 2: Convert to fraction form
    86,138.17/129,207.25 = 26,974.15/x
  3. Step 3: Cross multiply
    86,138.17x = 129,207.25 × 26,974.15
  4. Step 4: Simplify right side
    86,138.17x = 3,485,255,453.29
  5. Step 5: Solve for x
    x = 3,485,255,453.29/86,138.17
  6. Step 6: Final answer
    x = 40,461.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.