Home / 109,747.78-151,448.84-64,425.04

Finding the Fourth Proportional to 109,747.78, 151,448.84 and 64,425.04

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Solution

The fourth proportional to 109,747.78, 151,448.84 and 64,425.04 is: 88,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.78 : 151,448.84 = 64,425.04 : x
  2. Step 2: Convert to fraction form
    109,747.78/151,448.84 = 64,425.04/x
  3. Step 3: Cross multiply
    109,747.78x = 151,448.84 × 64,425.04
  4. Step 4: Simplify right side
    109,747.78x = 9,757,097,115.80
  5. Step 5: Solve for x
    x = 9,757,097,115.80/109,747.78
  6. Step 6: Final answer
    x = 88,904.74

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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.