Home / 121,913.10-182,869.65-101,245.95

Finding the Fourth Proportional to 121,913.10, 182,869.65 and 101,245.95

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Solution

The fourth proportional to 121,913.10, 182,869.65 and 101,245.95 is: 151,868.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,913.10 : 182,869.65 = 101,245.95 : x
  2. Step 2: Convert to fraction form
    121,913.10/182,869.65 = 101,245.95/x
  3. Step 3: Cross multiply
    121,913.10x = 182,869.65 × 101,245.95
  4. Step 4: Simplify right side
    121,913.10x = 18,514,811,440.42
  5. Step 5: Solve for x
    x = 18,514,811,440.42/121,913.10
  6. Step 6: Final answer
    x = 151,868.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.