Home / 115,270.84-159,074.45-64,286.80

Finding the Fourth Proportional to 115,270.84, 159,074.45 and 64,286.80

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Solution

The fourth proportional to 115,270.84, 159,074.45 and 64,286.80 is: 88,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,270.84 : 159,074.45 = 64,286.80 : x
  2. Step 2: Convert to fraction form
    115,270.84/159,074.45 = 64,286.80/x
  3. Step 3: Cross multiply
    115,270.84x = 159,074.45 × 64,286.80
  4. Step 4: Simplify right side
    115,270.84x = 10,226,387,352.26
  5. Step 5: Solve for x
    x = 10,226,387,352.26/115,270.84
  6. Step 6: Final answer
    x = 88,716.17

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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.