Home / 94,711.20-142,066.80-90,103.20

Finding the Fourth Proportional to 94,711.20, 142,066.80 and 90,103.20

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Solution

The fourth proportional to 94,711.20, 142,066.80 and 90,103.20 is: 135,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,711.20 : 142,066.80 = 90,103.20 : x
  2. Step 2: Convert to fraction form
    94,711.20/142,066.80 = 90,103.20/x
  3. Step 3: Cross multiply
    94,711.20x = 142,066.80 × 90,103.20
  4. Step 4: Simplify right side
    94,711.20x = 12,800,673,293.76
  5. Step 5: Solve for x
    x = 12,800,673,293.76/94,711.20
  6. Step 6: Final answer
    x = 135,154.80

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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.