Home / 156,184.80-234,111.34-81,229.93

Finding the Fourth Proportional to 156,184.80, 234,111.34 and 81,229.93

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Solution

The fourth proportional to 156,184.80, 234,111.34 and 81,229.93 is: 121,758.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,184.80 : 234,111.34 = 81,229.93 : x
  2. Step 2: Convert to fraction form
    156,184.80/234,111.34 = 81,229.93/x
  3. Step 3: Cross multiply
    156,184.80x = 234,111.34 × 81,229.93
  4. Step 4: Simplify right side
    156,184.80x = 19,016,847,760.41
  5. Step 5: Solve for x
    x = 19,016,847,760.41/156,184.80
  6. Step 6: Final answer
    x = 121,758.63

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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.