Home / 105,490.22-158,234.85-43,160.72

Finding the Fourth Proportional to 105,490.22, 158,234.85 and 43,160.72

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Solution

The fourth proportional to 105,490.22, 158,234.85 and 43,160.72 is: 64,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,490.22 : 158,234.85 = 43,160.72 : x
  2. Step 2: Convert to fraction form
    105,490.22/158,234.85 = 43,160.72/x
  3. Step 3: Cross multiply
    105,490.22x = 158,234.85 × 43,160.72
  4. Step 4: Simplify right side
    105,490.22x = 6,829,529,263.92
  5. Step 5: Solve for x
    x = 6,829,529,263.92/105,490.22
  6. Step 6: Final answer
    x = 64,740.88

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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.