Home / 115,985.52-173,713.92-69,141.60

Finding the Fourth Proportional to 115,985.52, 173,713.92 and 69,141.60

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Solution

The fourth proportional to 115,985.52, 173,713.92 and 69,141.60 is: 103,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,985.52 : 173,713.92 = 69,141.60 : x
  2. Step 2: Convert to fraction form
    115,985.52/173,713.92 = 69,141.60/x
  3. Step 3: Cross multiply
    115,985.52x = 173,713.92 × 69,141.60
  4. Step 4: Simplify right side
    115,985.52x = 12,010,858,371.07
  5. Step 5: Solve for x
    x = 12,010,858,371.07/115,985.52
  6. Step 6: Final answer
    x = 103,554.81

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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.