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Finding the Fourth Proportional to 157,432.60, 236,148.90 and 137,749.60

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Solution

The fourth proportional to 157,432.60, 236,148.90 and 137,749.60 is: 206,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,432.60 : 236,148.90 = 137,749.60 : x
  2. Step 2: Convert to fraction form
    157,432.60/236,148.90 = 137,749.60/x
  3. Step 3: Cross multiply
    157,432.60x = 236,148.90 × 137,749.60
  4. Step 4: Simplify right side
    157,432.60x = 32,529,416,515.44
  5. Step 5: Solve for x
    x = 32,529,416,515.44/157,432.60
  6. Step 6: Final answer
    x = 206,624.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.