Home / 156,718.80-216,269.68-88,734

Finding the Fourth Proportional to 156,718.80, 216,269.68 and 88,734

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Solution

The fourth proportional to 156,718.80, 216,269.68 and 88,734 is: 122,451.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,718.80 : 216,269.68 = 88,734 : x
  2. Step 2: Convert to fraction form
    156,718.80/216,269.68 = 88,734/x
  3. Step 3: Cross multiply
    156,718.80x = 216,269.68 × 88,734
  4. Step 4: Simplify right side
    156,718.80x = 19,190,473,785.12
  5. Step 5: Solve for x
    x = 19,190,473,785.12/156,718.80
  6. Step 6: Final answer
    x = 122,451.64

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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.