Home / 156,821.45-216,414.13-88,851.01

Finding the Fourth Proportional to 156,821.45, 216,414.13 and 88,851.01

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Solution

The fourth proportional to 156,821.45, 216,414.13 and 88,851.01 is: 122,614.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,821.45 : 216,414.13 = 88,851.01 : x
  2. Step 2: Convert to fraction form
    156,821.45/216,414.13 = 88,851.01/x
  3. Step 3: Cross multiply
    156,821.45x = 216,414.13 × 88,851.01
  4. Step 4: Simplify right side
    156,821.45x = 19,228,613,837.98
  5. Step 5: Solve for x
    x = 19,228,613,837.98/156,821.45
  6. Step 6: Final answer
    x = 122,614.69

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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.