Home / 115,274.42-159,078.39-64,287.21

Finding the Fourth Proportional to 115,274.42, 159,078.39 and 64,287.21

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Solution

The fourth proportional to 115,274.42, 159,078.39 and 64,287.21 is: 88,716.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,274.42 : 159,078.39 = 64,287.21 : x
  2. Step 2: Convert to fraction form
    115,274.42/159,078.39 = 64,287.21/x
  3. Step 3: Cross multiply
    115,274.42x = 159,078.39 × 64,287.21
  4. Step 4: Simplify right side
    115,274.42x = 10,226,705,864.39
  5. Step 5: Solve for x
    x = 10,226,705,864.39/115,274.42
  6. Step 6: Final answer
    x = 88,716.18

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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.