Home / 145,865.20-218,672.99-55,972.42

Finding the Fourth Proportional to 145,865.20, 218,672.99 and 55,972.42

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Solution

The fourth proportional to 145,865.20, 218,672.99 and 55,972.42 is: 83,910.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.20 : 218,672.99 = 55,972.42 : x
  2. Step 2: Convert to fraction form
    145,865.20/218,672.99 = 55,972.42/x
  3. Step 3: Cross multiply
    145,865.20x = 218,672.99 × 55,972.42
  4. Step 4: Simplify right side
    145,865.20x = 12,239,655,345.57
  5. Step 5: Solve for x
    x = 12,239,655,345.57/145,865.20
  6. Step 6: Final answer
    x = 83,910.73

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1.5x scale

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.