Home / 131,585.28-181,576.69-77,860.92

Finding the Fourth Proportional to 131,585.28, 181,576.69 and 77,860.92

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Solution

The fourth proportional to 131,585.28, 181,576.69 and 77,860.92 is: 107,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,585.28 : 181,576.69 = 77,860.92 : x
  2. Step 2: Convert to fraction form
    131,585.28/181,576.69 = 77,860.92/x
  3. Step 3: Cross multiply
    131,585.28x = 181,576.69 × 77,860.92
  4. Step 4: Simplify right side
    131,585.28x = 14,137,728,133.95
  5. Step 5: Solve for x
    x = 14,137,728,133.95/131,585.28
  6. Step 6: Final answer
    x = 107,441.56

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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.