Home / 103,375.85-142,641.61-60,942.58

Finding the Fourth Proportional to 103,375.85, 142,641.61 and 60,942.58

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Solution

The fourth proportional to 103,375.85, 142,641.61 and 60,942.58 is: 84,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,375.85 : 142,641.61 = 60,942.58 : x
  2. Step 2: Convert to fraction form
    103,375.85/142,641.61 = 60,942.58/x
  3. Step 3: Cross multiply
    103,375.85x = 142,641.61 × 60,942.58
  4. Step 4: Simplify right side
    103,375.85x = 8,692,947,219.79
  5. Step 5: Solve for x
    x = 8,692,947,219.79/103,375.85
  6. Step 6: Final answer
    x = 84,090.70

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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.