Home / 115,986.90-173,716.29-69,142.98

Finding the Fourth Proportional to 115,986.90, 173,716.29 and 69,142.98

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Solution

The fourth proportional to 115,986.90, 173,716.29 and 69,142.98 is: 103,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,986.90 : 173,716.29 = 69,142.98 : x
  2. Step 2: Convert to fraction form
    115,986.90/173,716.29 = 69,142.98/x
  3. Step 3: Cross multiply
    115,986.90x = 173,716.29 × 69,142.98
  4. Step 4: Simplify right side
    115,986.90x = 12,011,261,965.14
  5. Step 5: Solve for x
    x = 12,011,261,965.14/115,986.90
  6. Step 6: Final answer
    x = 103,557.06

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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.