Home / 137,275.62-189,444.33-76,845.90

Finding the Fourth Proportional to 137,275.62, 189,444.33 and 76,845.90

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Solution

The fourth proportional to 137,275.62, 189,444.33 and 76,845.90 is: 106,049.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,275.62 : 189,444.33 = 76,845.90 : x
  2. Step 2: Convert to fraction form
    137,275.62/189,444.33 = 76,845.90/x
  3. Step 3: Cross multiply
    137,275.62x = 189,444.33 × 76,845.90
  4. Step 4: Simplify right side
    137,275.62x = 14,558,020,038.75
  5. Step 5: Solve for x
    x = 14,558,020,038.75/137,275.62
  6. Step 6: Final answer
    x = 106,049.57

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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.