Home / 137,006.43-189,068.08-76,576.97

Finding the Fourth Proportional to 137,006.43, 189,068.08 and 76,576.97

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Solution

The fourth proportional to 137,006.43, 189,068.08 and 76,576.97 is: 105,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,006.43 : 189,068.08 = 76,576.97 : x
  2. Step 2: Convert to fraction form
    137,006.43/189,068.08 = 76,576.97/x
  3. Step 3: Cross multiply
    137,006.43x = 189,068.08 × 76,576.97
  4. Step 4: Simplify right side
    137,006.43x = 14,478,260,690.12
  5. Step 5: Solve for x
    x = 14,478,260,690.12/137,006.43
  6. Step 6: Final answer
    x = 105,675.78

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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.