Home / 137,434.28-189,682.98-80,848.04

Finding the Fourth Proportional to 137,434.28, 189,682.98 and 80,848.04

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Solution

The fourth proportional to 137,434.28, 189,682.98 and 80,848.04 is: 111,584.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,434.28 : 189,682.98 = 80,848.04 : x
  2. Step 2: Convert to fraction form
    137,434.28/189,682.98 = 80,848.04/x
  3. Step 3: Cross multiply
    137,434.28x = 189,682.98 × 80,848.04
  4. Step 4: Simplify right side
    137,434.28x = 15,335,497,154.36
  5. Step 5: Solve for x
    x = 15,335,497,154.36/137,434.28
  6. Step 6: Final answer
    x = 111,584.22

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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.