Home / 156,974.45-235,516.35-68,291.60

Finding the Fourth Proportional to 156,974.45, 235,516.35 and 68,291.60

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Solution

The fourth proportional to 156,974.45, 235,516.35 and 68,291.60 is: 102,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.45 : 235,516.35 = 68,291.60 : x
  2. Step 2: Convert to fraction form
    156,974.45/235,516.35 = 68,291.60/x
  3. Step 3: Cross multiply
    156,974.45x = 235,516.35 × 68,291.60
  4. Step 4: Simplify right side
    156,974.45x = 16,083,788,367.66
  5. Step 5: Solve for x
    x = 16,083,788,367.66/156,974.45
  6. Step 6: Final answer
    x = 102,461.19

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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.