Home / 103,487.42-142,813.91-58,162.75

Finding the Fourth Proportional to 103,487.42, 142,813.91 and 58,162.75

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Solution

The fourth proportional to 103,487.42, 142,813.91 and 58,162.75 is: 80,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,487.42 : 142,813.91 = 58,162.75 : x
  2. Step 2: Convert to fraction form
    103,487.42/142,813.91 = 58,162.75/x
  3. Step 3: Cross multiply
    103,487.42x = 142,813.91 × 58,162.75
  4. Step 4: Simplify right side
    103,487.42x = 8,306,449,532.22
  5. Step 5: Solve for x
    x = 8,306,449,532.22/103,487.42
  6. Step 6: Final answer
    x = 80,265.31

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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.