Home / 123,721.54-185,675.60-90,527.24

Finding the Fourth Proportional to 123,721.54, 185,675.60 and 90,527.24

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Solution

The fourth proportional to 123,721.54, 185,675.60 and 90,527.24 is: 135,859.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,721.54 : 185,675.60 = 90,527.24 : x
  2. Step 2: Convert to fraction form
    123,721.54/185,675.60 = 90,527.24/x
  3. Step 3: Cross multiply
    123,721.54x = 185,675.60 × 90,527.24
  4. Step 4: Simplify right side
    123,721.54x = 16,808,700,293.85
  5. Step 5: Solve for x
    x = 16,808,700,293.85/123,721.54
  6. Step 6: Final answer
    x = 135,859.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.