Home / 103,716.18-143,130.15-61,274.61

Finding the Fourth Proportional to 103,716.18, 143,130.15 and 61,274.61

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Solution

The fourth proportional to 103,716.18, 143,130.15 and 61,274.61 is: 84,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,716.18 : 143,130.15 = 61,274.61 : x
  2. Step 2: Convert to fraction form
    103,716.18/143,130.15 = 61,274.61/x
  3. Step 3: Cross multiply
    103,716.18x = 143,130.15 × 61,274.61
  4. Step 4: Simplify right side
    103,716.18x = 8,770,244,120.49
  5. Step 5: Solve for x
    x = 8,770,244,120.49/103,716.18
  6. Step 6: Final answer
    x = 84,560.04

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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.