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Finding the Fourth Proportional to 157,440.60, 236,160.90 and 137,757.60

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Solution

The fourth proportional to 157,440.60, 236,160.90 and 137,757.60 is: 206,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,440.60 : 236,160.90 = 137,757.60 : x
  2. Step 2: Convert to fraction form
    157,440.60/236,160.90 = 137,757.60/x
  3. Step 3: Cross multiply
    157,440.60x = 236,160.90 × 137,757.60
  4. Step 4: Simplify right side
    157,440.60x = 32,532,958,797.84
  5. Step 5: Solve for x
    x = 32,532,958,797.84/157,440.60
  6. Step 6: Final answer
    x = 206,636.40

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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.