Home / 83,011.20-123,869.35-74,065.04

Finding the Fourth Proportional to 83,011.20, 123,869.35 and 74,065.04

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Solution

The fourth proportional to 83,011.20, 123,869.35 and 74,065.04 is: 110,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,011.20 : 123,869.35 = 74,065.04 : x
  2. Step 2: Convert to fraction form
    83,011.20/123,869.35 = 74,065.04/x
  3. Step 3: Cross multiply
    83,011.20x = 123,869.35 × 74,065.04
  4. Step 4: Simplify right side
    83,011.20x = 9,174,388,362.52
  5. Step 5: Solve for x
    x = 9,174,388,362.52/83,011.20
  6. Step 6: Final answer
    x = 110,519.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.