Home / 135,869.85-187,500.76-75,440.61

Finding the Fourth Proportional to 135,869.85, 187,500.76 and 75,440.61

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Solution

The fourth proportional to 135,869.85, 187,500.76 and 75,440.61 is: 104,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,869.85 : 187,500.76 = 75,440.61 : x
  2. Step 2: Convert to fraction form
    135,869.85/187,500.76 = 75,440.61/x
  3. Step 3: Cross multiply
    135,869.85x = 187,500.76 × 75,440.61
  4. Step 4: Simplify right side
    135,869.85x = 14,145,171,521.26
  5. Step 5: Solve for x
    x = 14,145,171,521.26/135,869.85
  6. Step 6: Final answer
    x = 104,108.24

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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.