Home / 108,611.07-149,726.22-76,247.13

Finding the Fourth Proportional to 108,611.07, 149,726.22 and 76,247.13

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Solution

The fourth proportional to 108,611.07, 149,726.22 and 76,247.13 is: 105,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,611.07 : 149,726.22 = 76,247.13 : x
  2. Step 2: Convert to fraction form
    108,611.07/149,726.22 = 76,247.13/x
  3. Step 3: Cross multiply
    108,611.07x = 149,726.22 × 76,247.13
  4. Step 4: Simplify right side
    108,611.07x = 11,416,194,560.75
  5. Step 5: Solve for x
    x = 11,416,194,560.75/108,611.07
  6. Step 6: Final answer
    x = 105,110.78

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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.