Home / 104,081.28-143,639.10-58,743.15

Finding the Fourth Proportional to 104,081.28, 143,639.10 and 58,743.15

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Solution

The fourth proportional to 104,081.28, 143,639.10 and 58,743.15 is: 81,069.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,081.28 : 143,639.10 = 58,743.15 : x
  2. Step 2: Convert to fraction form
    104,081.28/143,639.10 = 58,743.15/x
  3. Step 3: Cross multiply
    104,081.28x = 143,639.10 × 58,743.15
  4. Step 4: Simplify right side
    104,081.28x = 8,437,813,197.17
  5. Step 5: Solve for x
    x = 8,437,813,197.17/104,081.28
  6. Step 6: Final answer
    x = 81,069.46

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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.