Home / 115,826.70-173,740.05-71,309.10

Finding the Fourth Proportional to 115,826.70, 173,740.05 and 71,309.10

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Solution

The fourth proportional to 115,826.70, 173,740.05 and 71,309.10 is: 106,963.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,826.70 : 173,740.05 = 71,309.10 : x
  2. Step 2: Convert to fraction form
    115,826.70/173,740.05 = 71,309.10/x
  3. Step 3: Cross multiply
    115,826.70x = 173,740.05 × 71,309.10
  4. Step 4: Simplify right side
    115,826.70x = 12,389,246,599.46
  5. Step 5: Solve for x
    x = 12,389,246,599.46/115,826.70
  6. Step 6: Final answer
    x = 106,963.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.