Home / 144,728.52-217,178.40-80,740.56

Finding the Fourth Proportional to 144,728.52, 217,178.40 and 80,740.56

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Solution

The fourth proportional to 144,728.52, 217,178.40 and 80,740.56 is: 121,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,728.52 : 217,178.40 = 80,740.56 : x
  2. Step 2: Convert to fraction form
    144,728.52/217,178.40 = 80,740.56/x
  3. Step 3: Cross multiply
    144,728.52x = 217,178.40 × 80,740.56
  4. Step 4: Simplify right side
    144,728.52x = 17,535,105,635.90
  5. Step 5: Solve for x
    x = 17,535,105,635.90/144,728.52
  6. Step 6: Final answer
    x = 121,158.61

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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.