Home / 156,849.30-216,452.25-85,230.18

Finding the Fourth Proportional to 156,849.30, 216,452.25 and 85,230.18

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Solution

The fourth proportional to 156,849.30, 216,452.25 and 85,230.18 is: 117,617.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,849.30 : 216,452.25 = 85,230.18 : x
  2. Step 2: Convert to fraction form
    156,849.30/216,452.25 = 85,230.18/x
  3. Step 3: Cross multiply
    156,849.30x = 216,452.25 × 85,230.18
  4. Step 4: Simplify right side
    156,849.30x = 18,448,264,228.91
  5. Step 5: Solve for x
    x = 18,448,264,228.91/156,849.30
  6. Step 6: Final answer
    x = 117,617.77

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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.