Home / 190,137.28-285,036.72-90,235.84

Finding the Fourth Proportional to 190,137.28, 285,036.72 and 90,235.84

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Solution

The fourth proportional to 190,137.28, 285,036.72 and 90,235.84 is: 135,273.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,137.28 : 285,036.72 = 90,235.84 : x
  2. Step 2: Convert to fraction form
    190,137.28/285,036.72 = 90,235.84/x
  3. Step 3: Cross multiply
    190,137.28x = 285,036.72 × 90,235.84
  4. Step 4: Simplify right side
    190,137.28x = 25,720,527,860.04
  5. Step 5: Solve for x
    x = 25,720,527,860.04/190,137.28
  6. Step 6: Final answer
    x = 135,273.46

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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.