Home / 86,908.30-130,132.05-68,476.30

Finding the Fourth Proportional to 86,908.30, 130,132.05 and 68,476.30

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Solution

The fourth proportional to 86,908.30, 130,132.05 and 68,476.30 is: 102,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,908.30 : 130,132.05 = 68,476.30 : x
  2. Step 2: Convert to fraction form
    86,908.30/130,132.05 = 68,476.30/x
  3. Step 3: Cross multiply
    86,908.30x = 130,132.05 × 68,476.30
  4. Step 4: Simplify right side
    86,908.30x = 8,910,961,295.42
  5. Step 5: Solve for x
    x = 8,910,961,295.42/86,908.30
  6. Step 6: Final answer
    x = 102,532.91

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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.