Home / 137,318.29-189,477.33-76,891.48

Finding the Fourth Proportional to 137,318.29, 189,477.33 and 76,891.48

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Solution

The fourth proportional to 137,318.29, 189,477.33 and 76,891.48 is: 106,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,318.29 : 189,477.33 = 76,891.48 : x
  2. Step 2: Convert to fraction form
    137,318.29/189,477.33 = 76,891.48/x
  3. Step 3: Cross multiply
    137,318.29x = 189,477.33 × 76,891.48
  4. Step 4: Simplify right side
    137,318.29x = 14,569,191,568.11
  5. Step 5: Solve for x
    x = 14,569,191,568.11/137,318.29
  6. Step 6: Final answer
    x = 106,097.97

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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.