Home / 90,108.27-135,074.13-50,146.32

Finding the Fourth Proportional to 90,108.27, 135,074.13 and 50,146.32

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Solution

The fourth proportional to 90,108.27, 135,074.13 and 50,146.32 is: 75,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108.27 : 135,074.13 = 50,146.32 : x
  2. Step 2: Convert to fraction form
    90,108.27/135,074.13 = 50,146.32/x
  3. Step 3: Cross multiply
    90,108.27x = 135,074.13 × 50,146.32
  4. Step 4: Simplify right side
    90,108.27x = 6,773,470,007.57
  5. Step 5: Solve for x
    x = 6,773,470,007.57/90,108.27
  6. Step 6: Final answer
    x = 75,170.35

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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.