Home / 137,406.20-189,525.70-96,656.72

Finding the Fourth Proportional to 137,406.20, 189,525.70 and 96,656.72

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Solution

The fourth proportional to 137,406.20, 189,525.70 and 96,656.72 is: 133,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,406.20 : 189,525.70 = 96,656.72 : x
  2. Step 2: Convert to fraction form
    137,406.20/189,525.70 = 96,656.72/x
  3. Step 3: Cross multiply
    137,406.20x = 189,525.70 × 96,656.72
  4. Step 4: Simplify right side
    137,406.20x = 18,318,932,517.70
  5. Step 5: Solve for x
    x = 18,318,932,517.70/137,406.20
  6. Step 6: Final answer
    x = 133,319.55

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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.