Home / 190,255.14-285,385.50-90,425.52

Finding the Fourth Proportional to 190,255.14, 285,385.50 and 90,425.52

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Solution

The fourth proportional to 190,255.14, 285,385.50 and 90,425.52 is: 135,639.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,255.14 : 285,385.50 = 90,425.52 : x
  2. Step 2: Convert to fraction form
    190,255.14/285,385.50 = 90,425.52/x
  3. Step 3: Cross multiply
    190,255.14x = 285,385.50 × 90,425.52
  4. Step 4: Simplify right side
    190,255.14x = 25,806,132,237.96
  5. Step 5: Solve for x
    x = 25,806,132,237.96/190,255.14
  6. Step 6: Final answer
    x = 135,639.61

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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.