Home / 126,631.62-174,678.66-80,606.16

Finding the Fourth Proportional to 126,631.62, 174,678.66 and 80,606.16

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Solution

The fourth proportional to 126,631.62, 174,678.66 and 80,606.16 is: 111,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,631.62 : 174,678.66 = 80,606.16 : x
  2. Step 2: Convert to fraction form
    126,631.62/174,678.66 = 80,606.16/x
  3. Step 3: Cross multiply
    126,631.62x = 174,678.66 × 80,606.16
  4. Step 4: Simplify right side
    126,631.62x = 14,080,176,016.55
  5. Step 5: Solve for x
    x = 14,080,176,016.55/126,631.62
  6. Step 6: Final answer
    x = 111,190.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.