Home / 156,972.95-235,514.10-68,290.10

Finding the Fourth Proportional to 156,972.95, 235,514.10 and 68,290.10

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Solution

The fourth proportional to 156,972.95, 235,514.10 and 68,290.10 is: 102,458.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.95 : 235,514.10 = 68,290.10 : x
  2. Step 2: Convert to fraction form
    156,972.95/235,514.10 = 68,290.10/x
  3. Step 3: Cross multiply
    156,972.95x = 235,514.10 × 68,290.10
  4. Step 4: Simplify right side
    156,972.95x = 16,083,281,440.41
  5. Step 5: Solve for x
    x = 16,083,281,440.41/156,972.95
  6. Step 6: Final answer
    x = 102,458.94

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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.