Home / 156,971.10-235,456.65-68,267.10

Finding the Fourth Proportional to 156,971.10, 235,456.65 and 68,267.10

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Solution

The fourth proportional to 156,971.10, 235,456.65 and 68,267.10 is: 102,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.10 : 235,456.65 = 68,267.10 : x
  2. Step 2: Convert to fraction form
    156,971.10/235,456.65 = 68,267.10/x
  3. Step 3: Cross multiply
    156,971.10x = 235,456.65 × 68,267.10
  4. Step 4: Simplify right side
    156,971.10x = 16,073,942,671.22
  5. Step 5: Solve for x
    x = 16,073,942,671.22/156,971.10
  6. Step 6: Final answer
    x = 102,400.65

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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.