Home / 156,971.34-235,324.29-68,157.66

Finding the Fourth Proportional to 156,971.34, 235,324.29 and 68,157.66

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Solution

The fourth proportional to 156,971.34, 235,324.29 and 68,157.66 is: 102,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.34 : 235,324.29 = 68,157.66 : x
  2. Step 2: Convert to fraction form
    156,971.34/235,324.29 = 68,157.66/x
  3. Step 3: Cross multiply
    156,971.34x = 235,324.29 × 68,157.66
  4. Step 4: Simplify right side
    156,971.34x = 16,039,152,947.56
  5. Step 5: Solve for x
    x = 16,039,152,947.56/156,971.34
  6. Step 6: Final answer
    x = 102,178.86

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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.