Home / 156,965.10-235,447.65-68,261.10

Finding the Fourth Proportional to 156,965.10, 235,447.65 and 68,261.10

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Solution

The fourth proportional to 156,965.10, 235,447.65 and 68,261.10 is: 102,391.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.10 : 235,447.65 = 68,261.10 : x
  2. Step 2: Convert to fraction form
    156,965.10/235,447.65 = 68,261.10/x
  3. Step 3: Cross multiply
    156,965.10x = 235,447.65 × 68,261.10
  4. Step 4: Simplify right side
    156,965.10x = 16,071,915,581.42
  5. Step 5: Solve for x
    x = 16,071,915,581.42/156,965.10
  6. Step 6: Final answer
    x = 102,391.65

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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.