Home / 115,708.17-159,692.07-64,723.73

Finding the Fourth Proportional to 115,708.17, 159,692.07 and 64,723.73

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Solution

The fourth proportional to 115,708.17, 159,692.07 and 64,723.73 is: 89,327.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,708.17 : 159,692.07 = 64,723.73 : x
  2. Step 2: Convert to fraction form
    115,708.17/159,692.07 = 64,723.73/x
  3. Step 3: Cross multiply
    115,708.17x = 159,692.07 × 64,723.73
  4. Step 4: Simplify right side
    115,708.17x = 10,335,866,421.82
  5. Step 5: Solve for x
    x = 10,335,866,421.82/115,708.17
  6. Step 6: Final answer
    x = 89,327.02

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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.