Home / 103,191.18-142,403.70-60,172.41

Finding the Fourth Proportional to 103,191.18, 142,403.70 and 60,172.41

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Solution

The fourth proportional to 103,191.18, 142,403.70 and 60,172.41 is: 83,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,191.18 : 142,403.70 = 60,172.41 : x
  2. Step 2: Convert to fraction form
    103,191.18/142,403.70 = 60,172.41/x
  3. Step 3: Cross multiply
    103,191.18x = 142,403.70 × 60,172.41
  4. Step 4: Simplify right side
    103,191.18x = 8,568,773,821.92
  5. Step 5: Solve for x
    x = 8,568,773,821.92/103,191.18
  6. Step 6: Final answer
    x = 83,037.85

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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.