Home / 121,031.28-181,546.84-36,792.12

Finding the Fourth Proportional to 121,031.28, 181,546.84 and 36,792.12

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Solution

The fourth proportional to 121,031.28, 181,546.84 and 36,792.12 is: 55,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,031.28 : 181,546.84 = 36,792.12 : x
  2. Step 2: Convert to fraction form
    121,031.28/181,546.84 = 36,792.12/x
  3. Step 3: Cross multiply
    121,031.28x = 181,546.84 × 36,792.12
  4. Step 4: Simplify right side
    121,031.28x = 6,679,493,122.90
  5. Step 5: Solve for x
    x = 6,679,493,122.90/121,031.28
  6. Step 6: Final answer
    x = 55,188.16

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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.