Home / 90,198.72-134,636.76-83,712.24

Finding the Fourth Proportional to 90,198.72, 134,636.76 and 83,712.24

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Solution

The fourth proportional to 90,198.72, 134,636.76 and 83,712.24 is: 124,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,198.72 : 134,636.76 = 83,712.24 : x
  2. Step 2: Convert to fraction form
    90,198.72/134,636.76 = 83,712.24/x
  3. Step 3: Cross multiply
    90,198.72x = 134,636.76 × 83,712.24
  4. Step 4: Simplify right side
    90,198.72x = 11,270,744,765.94
  5. Step 5: Solve for x
    x = 11,270,744,765.94/90,198.72
  6. Step 6: Final answer
    x = 124,954.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.