Home / 156,639.80-216,064.60-92,932.52

Finding the Fourth Proportional to 156,639.80, 216,064.60 and 92,932.52

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Solution

The fourth proportional to 156,639.80, 216,064.60 and 92,932.52 is: 128,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639.80 : 216,064.60 = 92,932.52 : x
  2. Step 2: Convert to fraction form
    156,639.80/216,064.60 = 92,932.52/x
  3. Step 3: Cross multiply
    156,639.80x = 216,064.60 × 92,932.52
  4. Step 4: Simplify right side
    156,639.80x = 20,079,427,760.79
  5. Step 5: Solve for x
    x = 20,079,427,760.79/156,639.80
  6. Step 6: Final answer
    x = 128,188.54

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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.