Home / 156,974.30-216,621.96-85,356.13

Finding the Fourth Proportional to 156,974.30, 216,621.96 and 85,356.13

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Solution

The fourth proportional to 156,974.30, 216,621.96 and 85,356.13 is: 117,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.30 : 216,621.96 = 85,356.13 : x
  2. Step 2: Convert to fraction form
    156,974.30/216,621.96 = 85,356.13/x
  3. Step 3: Cross multiply
    156,974.30x = 216,621.96 × 85,356.13
  4. Step 4: Simplify right side
    156,974.30x = 18,490,012,178.61
  5. Step 5: Solve for x
    x = 18,490,012,178.61/156,974.30
  6. Step 6: Final answer
    x = 117,790.06

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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.