Home / 135,486.52-187,002.50-90,166.41

Finding the Fourth Proportional to 135,486.52, 187,002.50 and 90,166.41

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Solution

The fourth proportional to 135,486.52, 187,002.50 and 90,166.41 is: 124,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,486.52 : 187,002.50 = 90,166.41 : x
  2. Step 2: Convert to fraction form
    135,486.52/187,002.50 = 90,166.41/x
  3. Step 3: Cross multiply
    135,486.52x = 187,002.50 × 90,166.41
  4. Step 4: Simplify right side
    135,486.52x = 16,861,343,635.19
  5. Step 5: Solve for x
    x = 16,861,343,635.19/135,486.52
  6. Step 6: Final answer
    x = 124,450.34

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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.