Home / 94,279.20-141,418.80-90,650.40

Finding the Fourth Proportional to 94,279.20, 141,418.80 and 90,650.40

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Solution

The fourth proportional to 94,279.20, 141,418.80 and 90,650.40 is: 135,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,279.20 : 141,418.80 = 90,650.40 : x
  2. Step 2: Convert to fraction form
    94,279.20/141,418.80 = 90,650.40/x
  3. Step 3: Cross multiply
    94,279.20x = 141,418.80 × 90,650.40
  4. Step 4: Simplify right side
    94,279.20x = 12,819,670,787.52
  5. Step 5: Solve for x
    x = 12,819,670,787.52/94,279.20
  6. Step 6: Final answer
    x = 135,975.60

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1.5x scale

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.