Home / 239,149.19-330,040.85-131,719.18

Finding the Fourth Proportional to 239,149.19, 330,040.85 and 131,719.18

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Solution

The fourth proportional to 239,149.19, 330,040.85 and 131,719.18 is: 181,780.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,149.19 : 330,040.85 = 131,719.18 : x
  2. Step 2: Convert to fraction form
    239,149.19/330,040.85 = 131,719.18/x
  3. Step 3: Cross multiply
    239,149.19x = 330,040.85 × 131,719.18
  4. Step 4: Simplify right side
    239,149.19x = 43,472,710,128.50
  5. Step 5: Solve for x
    x = 43,472,710,128.50/239,149.19
  6. Step 6: Final answer
    x = 181,780.71

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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.