Home / 135,057.80-186,504.18-90,475.40

Finding the Fourth Proportional to 135,057.80, 186,504.18 and 90,475.40

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Solution

The fourth proportional to 135,057.80, 186,504.18 and 90,475.40 is: 124,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,057.80 : 186,504.18 = 90,475.40 : x
  2. Step 2: Convert to fraction form
    135,057.80/186,504.18 = 90,475.40/x
  3. Step 3: Cross multiply
    135,057.80x = 186,504.18 × 90,475.40
  4. Step 4: Simplify right side
    135,057.80x = 16,874,040,287.17
  5. Step 5: Solve for x
    x = 16,874,040,287.17/135,057.80
  6. Step 6: Final answer
    x = 124,939.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.