Home / 156,790.20-216,388.08-88,811.76

Finding the Fourth Proportional to 156,790.20, 216,388.08 and 88,811.76

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Solution

The fourth proportional to 156,790.20, 216,388.08 and 88,811.76 is: 122,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,790.20 : 216,388.08 = 88,811.76 : x
  2. Step 2: Convert to fraction form
    156,790.20/216,388.08 = 88,811.76/x
  3. Step 3: Cross multiply
    156,790.20x = 216,388.08 × 88,811.76
  4. Step 4: Simplify right side
    156,790.20x = 19,217,806,227.82
  5. Step 5: Solve for x
    x = 19,217,806,227.82/156,790.20
  6. Step 6: Final answer
    x = 122,570.20

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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.