Home / 135,761.42-187,355.04-75,336.50

Finding the Fourth Proportional to 135,761.42, 187,355.04 and 75,336.50

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Solution

The fourth proportional to 135,761.42, 187,355.04 and 75,336.50 is: 103,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,761.42 : 187,355.04 = 75,336.50 : x
  2. Step 2: Convert to fraction form
    135,761.42/187,355.04 = 75,336.50/x
  3. Step 3: Cross multiply
    135,761.42x = 187,355.04 × 75,336.50
  4. Step 4: Simplify right side
    135,761.42x = 14,114,672,970.96
  5. Step 5: Solve for x
    x = 14,114,672,970.96/135,761.42
  6. Step 6: Final answer
    x = 103,966.75

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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.