Home / 156,776.27-216,356.76-88,795.20

Finding the Fourth Proportional to 156,776.27, 216,356.76 and 88,795.20

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Solution

The fourth proportional to 156,776.27, 216,356.76 and 88,795.20 is: 122,540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,776.27 : 216,356.76 = 88,795.20 : x
  2. Step 2: Convert to fraction form
    156,776.27/216,356.76 = 88,795.20/x
  3. Step 3: Cross multiply
    156,776.27x = 216,356.76 × 88,795.20
  4. Step 4: Simplify right side
    156,776.27x = 19,211,441,775.55
  5. Step 5: Solve for x
    x = 19,211,441,775.55/156,776.27
  6. Step 6: Final answer
    x = 122,540.50

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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.