Home / 107,208.72-147,899.52-66,932.46

Finding the Fourth Proportional to 107,208.72, 147,899.52 and 66,932.46

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Solution

The fourth proportional to 107,208.72, 147,899.52 and 66,932.46 is: 92,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,208.72 : 147,899.52 = 66,932.46 : x
  2. Step 2: Convert to fraction form
    107,208.72/147,899.52 = 66,932.46/x
  3. Step 3: Cross multiply
    107,208.72x = 147,899.52 × 66,932.46
  4. Step 4: Simplify right side
    107,208.72x = 9,899,278,706.42
  5. Step 5: Solve for x
    x = 9,899,278,706.42/107,208.72
  6. Step 6: Final answer
    x = 92,336.51

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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.