Home / 122,077.60-182,894.94-90,135.78

Finding the Fourth Proportional to 122,077.60, 182,894.94 and 90,135.78

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Solution

The fourth proportional to 122,077.60, 182,894.94 and 90,135.78 is: 135,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,077.60 : 182,894.94 = 90,135.78 : x
  2. Step 2: Convert to fraction form
    122,077.60/182,894.94 = 90,135.78/x
  3. Step 3: Cross multiply
    122,077.60x = 182,894.94 × 90,135.78
  4. Step 4: Simplify right side
    122,077.60x = 16,485,378,074.95
  5. Step 5: Solve for x
    x = 16,485,378,074.95/122,077.60
  6. Step 6: Final answer
    x = 135,040.16

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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.