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Finding the Fourth Proportional to 157,604.32, 217,425.36 and 103,820.32

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Solution

The fourth proportional to 157,604.32, 217,425.36 and 103,820.32 is: 143,226.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,604.32 : 217,425.36 = 103,820.32 : x
  2. Step 2: Convert to fraction form
    157,604.32/217,425.36 = 103,820.32/x
  3. Step 3: Cross multiply
    157,604.32x = 217,425.36 × 103,820.32
  4. Step 4: Simplify right side
    157,604.32x = 22,573,170,451.32
  5. Step 5: Solve for x
    x = 22,573,170,451.32/157,604.32
  6. Step 6: Final answer
    x = 143,226.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.