Home / 137,507.20-189,761.88-83,794.48

Finding the Fourth Proportional to 137,507.20, 189,761.88 and 83,794.48

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Solution

The fourth proportional to 137,507.20, 189,761.88 and 83,794.48 is: 115,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,507.20 : 189,761.88 = 83,794.48 : x
  2. Step 2: Convert to fraction form
    137,507.20/189,761.88 = 83,794.48/x
  3. Step 3: Cross multiply
    137,507.20x = 189,761.88 × 83,794.48
  4. Step 4: Simplify right side
    137,507.20x = 15,900,998,058.42
  5. Step 5: Solve for x
    x = 15,900,998,058.42/137,507.20
  6. Step 6: Final answer
    x = 115,637.57

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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.