Home / 168,526.78-232,470.51-120,139.40

Finding the Fourth Proportional to 168,526.78, 232,470.51 and 120,139.40

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Solution

The fourth proportional to 168,526.78, 232,470.51 and 120,139.40 is: 165,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,526.78 : 232,470.51 = 120,139.40 : x
  2. Step 2: Convert to fraction form
    168,526.78/232,470.51 = 120,139.40/x
  3. Step 3: Cross multiply
    168,526.78x = 232,470.51 × 120,139.40
  4. Step 4: Simplify right side
    168,526.78x = 27,928,867,719.75
  5. Step 5: Solve for x
    x = 27,928,867,719.75/168,526.78
  6. Step 6: Final answer
    x = 165,723.62

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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.