Home / 135,026.76-186,340.70-74,601.30

Finding the Fourth Proportional to 135,026.76, 186,340.70 and 74,601.30

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Solution

The fourth proportional to 135,026.76, 186,340.70 and 74,601.30 is: 102,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,026.76 : 186,340.70 = 74,601.30 : x
  2. Step 2: Convert to fraction form
    135,026.76/186,340.70 = 74,601.30/x
  3. Step 3: Cross multiply
    135,026.76x = 186,340.70 × 74,601.30
  4. Step 4: Simplify right side
    135,026.76x = 13,901,258,089.90
  5. Step 5: Solve for x
    x = 13,901,258,089.90/135,026.76
  6. Step 6: Final answer
    x = 102,951.87

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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.