Home / 188,545.28-260,191.68-103,666.88

Finding the Fourth Proportional to 188,545.28, 260,191.68 and 103,666.88

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Solution

The fourth proportional to 188,545.28, 260,191.68 and 103,666.88 is: 143,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,545.28 : 260,191.68 = 103,666.88 : x
  2. Step 2: Convert to fraction form
    188,545.28/260,191.68 = 103,666.88/x
  3. Step 3: Cross multiply
    188,545.28x = 260,191.68 × 103,666.88
  4. Step 4: Simplify right side
    188,545.28x = 26,973,259,667.56
  5. Step 5: Solve for x
    x = 26,973,259,667.56/188,545.28
  6. Step 6: Final answer
    x = 143,059.85

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1.5x scale

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.