Home / 157,620.81-236,433.27-52,439.78

Finding the Fourth Proportional to 157,620.81, 236,433.27 and 52,439.78

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Solution

The fourth proportional to 157,620.81, 236,433.27 and 52,439.78 is: 78,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,620.81 : 236,433.27 = 52,439.78 : x
  2. Step 2: Convert to fraction form
    157,620.81/236,433.27 = 52,439.78/x
  3. Step 3: Cross multiply
    157,620.81x = 236,433.27 × 52,439.78
  4. Step 4: Simplify right side
    157,620.81x = 12,398,507,481.31
  5. Step 5: Solve for x
    x = 12,398,507,481.31/157,620.81
  6. Step 6: Final answer
    x = 78,660.35

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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.