Home / 118,767.12-178,270.62-105,346.15

Finding the Fourth Proportional to 118,767.12, 178,270.62 and 105,346.15

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Solution

The fourth proportional to 118,767.12, 178,270.62 and 105,346.15 is: 158,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,767.12 : 178,270.62 = 105,346.15 : x
  2. Step 2: Convert to fraction form
    118,767.12/178,270.62 = 105,346.15/x
  3. Step 3: Cross multiply
    118,767.12x = 178,270.62 × 105,346.15
  4. Step 4: Simplify right side
    118,767.12x = 18,780,123,475.11
  5. Step 5: Solve for x
    x = 18,780,123,475.11/118,767.12
  6. Step 6: Final answer
    x = 158,125.61

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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.