Home / 115,982.40-173,709.54-69,138.48

Finding the Fourth Proportional to 115,982.40, 173,709.54 and 69,138.48

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Solution

The fourth proportional to 115,982.40, 173,709.54 and 69,138.48 is: 103,550.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,982.40 : 173,709.54 = 69,138.48 : x
  2. Step 2: Convert to fraction form
    115,982.40/173,709.54 = 69,138.48/x
  3. Step 3: Cross multiply
    115,982.40x = 173,709.54 × 69,138.48
  4. Step 4: Simplify right side
    115,982.40x = 12,010,013,557.10
  5. Step 5: Solve for x
    x = 12,010,013,557.10/115,982.40
  6. Step 6: Final answer
    x = 103,550.31

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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.