Home / 156,929.06-216,561.22-85,307.56

Finding the Fourth Proportional to 156,929.06, 216,561.22 and 85,307.56

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Solution

The fourth proportional to 156,929.06, 216,561.22 and 85,307.56 is: 117,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,929.06 : 216,561.22 = 85,307.56 : x
  2. Step 2: Convert to fraction form
    156,929.06/216,561.22 = 85,307.56/x
  3. Step 3: Cross multiply
    156,929.06x = 216,561.22 × 85,307.56
  4. Step 4: Simplify right side
    156,929.06x = 18,474,308,514.15
  5. Step 5: Solve for x
    x = 18,474,308,514.15/156,929.06
  6. Step 6: Final answer
    x = 117,723.95

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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.