Home / 103,920.80-143,376.32-58,593.12

Finding the Fourth Proportional to 103,920.80, 143,376.32 and 58,593.12

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Solution

The fourth proportional to 103,920.80, 143,376.32 and 58,593.12 is: 80,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,920.80 : 143,376.32 = 58,593.12 : x
  2. Step 2: Convert to fraction form
    103,920.80/143,376.32 = 58,593.12/x
  3. Step 3: Cross multiply
    103,920.80x = 143,376.32 × 58,593.12
  4. Step 4: Simplify right side
    103,920.80x = 8,400,865,922.92
  5. Step 5: Solve for x
    x = 8,400,865,922.92/103,920.80
  6. Step 6: Final answer
    x = 80,839.12

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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.