Home / 123,298.55-170,154.71-68,107.75

Finding the Fourth Proportional to 123,298.55, 170,154.71 and 68,107.75

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Solution

The fourth proportional to 123,298.55, 170,154.71 and 68,107.75 is: 93,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,298.55 : 170,154.71 = 68,107.75 : x
  2. Step 2: Convert to fraction form
    123,298.55/170,154.71 = 68,107.75/x
  3. Step 3: Cross multiply
    123,298.55x = 170,154.71 × 68,107.75
  4. Step 4: Simplify right side
    123,298.55x = 11,588,853,939.48
  5. Step 5: Solve for x
    x = 11,588,853,939.48/123,298.55
  6. Step 6: Final answer
    x = 93,990.19

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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.