Home / 115,723.49-159,690.87-64,727.37

Finding the Fourth Proportional to 115,723.49, 159,690.87 and 64,727.37

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Solution

The fourth proportional to 115,723.49, 159,690.87 and 64,727.37 is: 89,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,723.49 : 159,690.87 = 64,727.37 : x
  2. Step 2: Convert to fraction form
    115,723.49/159,690.87 = 64,727.37/x
  3. Step 3: Cross multiply
    115,723.49x = 159,690.87 × 64,727.37
  4. Step 4: Simplify right side
    115,723.49x = 10,336,370,028.11
  5. Step 5: Solve for x
    x = 10,336,370,028.11/115,723.49
  6. Step 6: Final answer
    x = 89,319.55

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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.