Home / 123,330.26-170,359.11-99,222

Finding the Fourth Proportional to 123,330.26, 170,359.11 and 99,222

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Solution

The fourth proportional to 123,330.26, 170,359.11 and 99,222 is: 137,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,330.26 : 170,359.11 = 99,222 : x
  2. Step 2: Convert to fraction form
    123,330.26/170,359.11 = 99,222/x
  3. Step 3: Cross multiply
    123,330.26x = 170,359.11 × 99,222
  4. Step 4: Simplify right side
    123,330.26x = 16,903,371,612.42
  5. Step 5: Solve for x
    x = 16,903,371,612.42/123,330.26
  6. Step 6: Final answer
    x = 137,057.78

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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.