Home / 100,162.28-138,224.04-62,436.56

Finding the Fourth Proportional to 100,162.28, 138,224.04 and 62,436.56

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Solution

The fourth proportional to 100,162.28, 138,224.04 and 62,436.56 is: 86,162.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,162.28 : 138,224.04 = 62,436.56 : x
  2. Step 2: Convert to fraction form
    100,162.28/138,224.04 = 62,436.56/x
  3. Step 3: Cross multiply
    100,162.28x = 138,224.04 × 62,436.56
  4. Step 4: Simplify right side
    100,162.28x = 8,630,233,566.90
  5. Step 5: Solve for x
    x = 8,630,233,566.90/100,162.28
  6. Step 6: Final answer
    x = 86,162.51

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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.