Home / 157,576.30-236,167.35-78,712.54

Finding the Fourth Proportional to 157,576.30, 236,167.35 and 78,712.54

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Solution

The fourth proportional to 157,576.30, 236,167.35 and 78,712.54 is: 117,970.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,576.30 : 236,167.35 = 78,712.54 : x
  2. Step 2: Convert to fraction form
    157,576.30/236,167.35 = 78,712.54/x
  3. Step 3: Cross multiply
    157,576.30x = 236,167.35 × 78,712.54
  4. Step 4: Simplify right side
    157,576.30x = 18,589,331,983.57
  5. Step 5: Solve for x
    x = 18,589,331,983.57/157,576.30
  6. Step 6: Final answer
    x = 117,970.35

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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.