Home / 90,713.04-135,383.52-88,351.08

Finding the Fourth Proportional to 90,713.04, 135,383.52 and 88,351.08

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Solution

The fourth proportional to 90,713.04, 135,383.52 and 88,351.08 is: 131,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,713.04 : 135,383.52 = 88,351.08 : x
  2. Step 2: Convert to fraction form
    90,713.04/135,383.52 = 88,351.08/x
  3. Step 3: Cross multiply
    90,713.04x = 135,383.52 × 88,351.08
  4. Step 4: Simplify right side
    90,713.04x = 11,961,280,206.20
  5. Step 5: Solve for x
    x = 11,961,280,206.20/90,713.04
  6. Step 6: Final answer
    x = 131,858.44

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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.