Home / 190,078.28-285,034.38-90,267.08

Finding the Fourth Proportional to 190,078.28, 285,034.38 and 90,267.08

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Solution

The fourth proportional to 190,078.28, 285,034.38 and 90,267.08 is: 135,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,078.28 : 285,034.38 = 90,267.08 : x
  2. Step 2: Convert to fraction form
    190,078.28/285,034.38 = 90,267.08/x
  3. Step 3: Cross multiply
    190,078.28x = 285,034.38 × 90,267.08
  4. Step 4: Simplify right side
    190,078.28x = 25,729,221,182.21
  5. Step 5: Solve for x
    x = 25,729,221,182.21/190,078.28
  6. Step 6: Final answer
    x = 135,361.18

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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.