Home / 107,023.74-147,636.78-66,174.82

Finding the Fourth Proportional to 107,023.74, 147,636.78 and 66,174.82

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Solution

The fourth proportional to 107,023.74, 147,636.78 and 66,174.82 is: 91,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,023.74 : 147,636.78 = 66,174.82 : x
  2. Step 2: Convert to fraction form
    107,023.74/147,636.78 = 66,174.82/x
  3. Step 3: Cross multiply
    107,023.74x = 147,636.78 × 66,174.82
  4. Step 4: Simplify right side
    107,023.74x = 9,769,836,724.63
  5. Step 5: Solve for x
    x = 9,769,836,724.63/107,023.74
  6. Step 6: Final answer
    x = 91,286.63

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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.