Home / 156,822.75-235,234.31-42,971.52

Finding the Fourth Proportional to 156,822.75, 235,234.31 and 42,971.52

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Solution

The fourth proportional to 156,822.75, 235,234.31 and 42,971.52 is: 64,457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,822.75 : 235,234.31 = 42,971.52 : x
  2. Step 2: Convert to fraction form
    156,822.75/235,234.31 = 42,971.52/x
  3. Step 3: Cross multiply
    156,822.75x = 235,234.31 × 42,971.52
  4. Step 4: Simplify right side
    156,822.75x = 10,108,375,641.99
  5. Step 5: Solve for x
    x = 10,108,375,641.99/156,822.75
  6. Step 6: Final answer
    x = 64,457.33

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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.