Home / 86,974.20-130,461.30-67,266.90

Finding the Fourth Proportional to 86,974.20, 130,461.30 and 67,266.90

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Solution

The fourth proportional to 86,974.20, 130,461.30 and 67,266.90 is: 100,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,974.20 : 130,461.30 = 67,266.90 : x
  2. Step 2: Convert to fraction form
    86,974.20/130,461.30 = 67,266.90/x
  3. Step 3: Cross multiply
    86,974.20x = 130,461.30 × 67,266.90
  4. Step 4: Simplify right side
    86,974.20x = 8,775,727,220.97
  5. Step 5: Solve for x
    x = 8,775,727,220.97/86,974.20
  6. Step 6: Final answer
    x = 100,900.35

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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.