Home / 100,215.25-138,292.99-59,951.28

Finding the Fourth Proportional to 100,215.25, 138,292.99 and 59,951.28

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Solution

The fourth proportional to 100,215.25, 138,292.99 and 59,951.28 is: 82,730.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,215.25 : 138,292.99 = 59,951.28 : x
  2. Step 2: Convert to fraction form
    100,215.25/138,292.99 = 59,951.28/x
  3. Step 3: Cross multiply
    100,215.25x = 138,292.99 × 59,951.28
  4. Step 4: Simplify right side
    100,215.25x = 8,290,841,765.53
  5. Step 5: Solve for x
    x = 8,290,841,765.53/100,215.25
  6. Step 6: Final answer
    x = 82,730.34

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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.