Home / 157,229.73-216,977.29-85,610.05

Finding the Fourth Proportional to 157,229.73, 216,977.29 and 85,610.05

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Solution

The fourth proportional to 157,229.73, 216,977.29 and 85,610.05 is: 118,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,229.73 : 216,977.29 = 85,610.05 : x
  2. Step 2: Convert to fraction form
    157,229.73/216,977.29 = 85,610.05/x
  3. Step 3: Cross multiply
    157,229.73x = 216,977.29 × 85,610.05
  4. Step 4: Simplify right side
    157,229.73x = 18,575,435,889.30
  5. Step 5: Solve for x
    x = 18,575,435,889.30/157,229.73
  6. Step 6: Final answer
    x = 118,142.01

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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.