Home / 131,608.15-181,619.24-71,178.79

Finding the Fourth Proportional to 131,608.15, 181,619.24 and 71,178.79

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Solution

The fourth proportional to 131,608.15, 181,619.24 and 71,178.79 is: 98,226.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,608.15 : 181,619.24 = 71,178.79 : x
  2. Step 2: Convert to fraction form
    131,608.15/181,619.24 = 71,178.79/x
  3. Step 3: Cross multiply
    131,608.15x = 181,619.24 × 71,178.79
  4. Step 4: Simplify right side
    131,608.15x = 12,927,436,479.93
  5. Step 5: Solve for x
    x = 12,927,436,479.93/131,608.15
  6. Step 6: Final answer
    x = 98,226.72

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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.