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Finding the Fourth Proportional to 157,289.67, 235,916.83 and 43,453.66

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Solution

The fourth proportional to 157,289.67, 235,916.83 and 43,453.66 is: 65,175.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,289.67 : 235,916.83 = 43,453.66 : x
  2. Step 2: Convert to fraction form
    157,289.67/235,916.83 = 43,453.66/x
  3. Step 3: Cross multiply
    157,289.67x = 235,916.83 × 43,453.66
  4. Step 4: Simplify right side
    157,289.67x = 10,251,449,719.10
  5. Step 5: Solve for x
    x = 10,251,449,719.10/157,289.67
  6. Step 6: Final answer
    x = 65,175.61

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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.