Home / 118,839.72-163,972.20-67,836.16

Finding the Fourth Proportional to 118,839.72, 163,972.20 and 67,836.16

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Solution

The fourth proportional to 118,839.72, 163,972.20 and 67,836.16 is: 93,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,839.72 : 163,972.20 = 67,836.16 : x
  2. Step 2: Convert to fraction form
    118,839.72/163,972.20 = 67,836.16/x
  3. Step 3: Cross multiply
    118,839.72x = 163,972.20 × 67,836.16
  4. Step 4: Simplify right side
    118,839.72x = 11,123,244,394.75
  5. Step 5: Solve for x
    x = 11,123,244,394.75/118,839.72
  6. Step 6: Final answer
    x = 93,598.71

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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.