Home / 103,696.28-143,103.55-58,375.90

Finding the Fourth Proportional to 103,696.28, 143,103.55 and 58,375.90

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Solution

The fourth proportional to 103,696.28, 143,103.55 and 58,375.90 is: 80,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,696.28 : 143,103.55 = 58,375.90 : x
  2. Step 2: Convert to fraction form
    103,696.28/143,103.55 = 58,375.90/x
  3. Step 3: Cross multiply
    103,696.28x = 143,103.55 × 58,375.90
  4. Step 4: Simplify right side
    103,696.28x = 8,353,798,020.75
  5. Step 5: Solve for x
    x = 8,353,798,020.75/103,696.28
  6. Step 6: Final answer
    x = 80,560.25

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1.5x scale

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.