Home / 137,558.66-189,832.97-80,196.38

Finding the Fourth Proportional to 137,558.66, 189,832.97 and 80,196.38

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Solution

The fourth proportional to 137,558.66, 189,832.97 and 80,196.38 is: 110,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,558.66 : 189,832.97 = 80,196.38 : x
  2. Step 2: Convert to fraction form
    137,558.66/189,832.97 = 80,196.38/x
  3. Step 3: Cross multiply
    137,558.66x = 189,832.97 × 80,196.38
  4. Step 4: Simplify right side
    137,558.66x = 15,223,916,510.74
  5. Step 5: Solve for x
    x = 15,223,916,510.74/137,558.66
  6. Step 6: Final answer
    x = 110,672.18

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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.