Home / 103,635.26-143,019.46-58,314.86

Finding the Fourth Proportional to 103,635.26, 143,019.46 and 58,314.86

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Solution

The fourth proportional to 103,635.26, 143,019.46 and 58,314.86 is: 80,476.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,635.26 : 143,019.46 = 58,314.86 : x
  2. Step 2: Convert to fraction form
    103,635.26/143,019.46 = 58,314.86/x
  3. Step 3: Cross multiply
    103,635.26x = 143,019.46 × 58,314.86
  4. Step 4: Simplify right side
    103,635.26x = 8,340,159,787.18
  5. Step 5: Solve for x
    x = 8,340,159,787.18/103,635.26
  6. Step 6: Final answer
    x = 80,476.08

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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.