Home / 137,432.28-189,680.22-80,846.04

Finding the Fourth Proportional to 137,432.28, 189,680.22 and 80,846.04

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Solution

The fourth proportional to 137,432.28, 189,680.22 and 80,846.04 is: 111,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,432.28 : 189,680.22 = 80,846.04 : x
  2. Step 2: Convert to fraction form
    137,432.28/189,680.22 = 80,846.04/x
  3. Step 3: Cross multiply
    137,432.28x = 189,680.22 × 80,846.04
  4. Step 4: Simplify right side
    137,432.28x = 15,334,894,653.33
  5. Step 5: Solve for x
    x = 15,334,894,653.33/137,432.28
  6. Step 6: Final answer
    x = 111,581.46

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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.