Home / 90,292.92-134,486.02-85,551.20

Finding the Fourth Proportional to 90,292.92, 134,486.02 and 85,551.20

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Solution

The fourth proportional to 90,292.92, 134,486.02 and 85,551.20 is: 127,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,292.92 : 134,486.02 = 85,551.20 : x
  2. Step 2: Convert to fraction form
    90,292.92/134,486.02 = 85,551.20/x
  3. Step 3: Cross multiply
    90,292.92x = 134,486.02 × 85,551.20
  4. Step 4: Simplify right side
    90,292.92x = 11,505,440,394.22
  5. Step 5: Solve for x
    x = 11,505,440,394.22/90,292.92
  6. Step 6: Final answer
    x = 127,423.51

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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.