Home / 131,246.68-181,134.02-80,293.35

Finding the Fourth Proportional to 131,246.68, 181,134.02 and 80,293.35

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Solution

The fourth proportional to 131,246.68, 181,134.02 and 80,293.35 is: 110,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,246.68 : 181,134.02 = 80,293.35 : x
  2. Step 2: Convert to fraction form
    131,246.68/181,134.02 = 80,293.35/x
  3. Step 3: Cross multiply
    131,246.68x = 181,134.02 × 80,293.35
  4. Step 4: Simplify right side
    131,246.68x = 14,543,857,635.31
  5. Step 5: Solve for x
    x = 14,543,857,635.31/131,246.68
  6. Step 6: Final answer
    x = 110,813.15

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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.