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Finding the Fourth Proportional to 169,321.20, 254,176.20 and 102,836.40

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Solution

The fourth proportional to 169,321.20, 254,176.20 and 102,836.40 is: 154,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,321.20 : 254,176.20 = 102,836.40 : x
  2. Step 2: Convert to fraction form
    169,321.20/254,176.20 = 102,836.40/x
  3. Step 3: Cross multiply
    169,321.20x = 254,176.20 × 102,836.40
  4. Step 4: Simplify right side
    169,321.20x = 26,138,565,373.68
  5. Step 5: Solve for x
    x = 26,138,565,373.68/169,321.20
  6. Step 6: Final answer
    x = 154,372.67

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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.