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Finding the Fourth Proportional to 126,853.81, 175,057.72 and 69,493.05

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Solution

The fourth proportional to 126,853.81, 175,057.72 and 69,493.05 is: 95,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,853.81 : 175,057.72 = 69,493.05 : x
  2. Step 2: Convert to fraction form
    126,853.81/175,057.72 = 69,493.05/x
  3. Step 3: Cross multiply
    126,853.81x = 175,057.72 × 69,493.05
  4. Step 4: Simplify right side
    126,853.81x = 12,165,294,715.11
  5. Step 5: Solve for x
    x = 12,165,294,715.11/126,853.81
  6. Step 6: Final answer
    x = 95,900.11

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1.5x scale

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.