Home / 90,218.00-135,326.39-70,513.13

Finding the Fourth Proportional to 90,218.00, 135,326.39 and 70,513.13

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Solution

The fourth proportional to 90,218.00, 135,326.39 and 70,513.13 is: 105,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,218.00 : 135,326.39 = 70,513.13 : x
  2. Step 2: Convert to fraction form
    90,218.00/135,326.39 = 70,513.13/x
  3. Step 3: Cross multiply
    90,218.00x = 135,326.39 × 70,513.13
  4. Step 4: Simplify right side
    90,218.00x = 9,542,286,301.30
  5. Step 5: Solve for x
    x = 9,542,286,301.30/90,218.00
  6. Step 6: Final answer
    x = 105,769.21

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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.