Home / 100,956.50-151,478.48-54,154.70

Finding the Fourth Proportional to 100,956.50, 151,478.48 and 54,154.70

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Solution

The fourth proportional to 100,956.50, 151,478.48 and 54,154.70 is: 81,255.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,956.50 : 151,478.48 = 54,154.70 : x
  2. Step 2: Convert to fraction form
    100,956.50/151,478.48 = 54,154.70/x
  3. Step 3: Cross multiply
    100,956.50x = 151,478.48 × 54,154.70
  4. Step 4: Simplify right side
    100,956.50x = 8,203,271,640.86
  5. Step 5: Solve for x
    x = 8,203,271,640.86/100,956.50
  6. Step 6: Final answer
    x = 81,255.51

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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.