Home / 134,441.20-201,661.80-90,204.40

Finding the Fourth Proportional to 134,441.20, 201,661.80 and 90,204.40

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Solution

The fourth proportional to 134,441.20, 201,661.80 and 90,204.40 is: 135,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,441.20 : 201,661.80 = 90,204.40 : x
  2. Step 2: Convert to fraction form
    134,441.20/201,661.80 = 90,204.40/x
  3. Step 3: Cross multiply
    134,441.20x = 201,661.80 × 90,204.40
  4. Step 4: Simplify right side
    134,441.20x = 18,190,781,671.92
  5. Step 5: Solve for x
    x = 18,190,781,671.92/134,441.20
  6. Step 6: Final answer
    x = 135,306.60

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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.