Home / 115,680.44-159,637.89-64,692.60

Finding the Fourth Proportional to 115,680.44, 159,637.89 and 64,692.60

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Solution

The fourth proportional to 115,680.44, 159,637.89 and 64,692.60 is: 89,275.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,680.44 : 159,637.89 = 64,692.60 : x
  2. Step 2: Convert to fraction form
    115,680.44/159,637.89 = 64,692.60/x
  3. Step 3: Cross multiply
    115,680.44x = 159,637.89 × 64,692.60
  4. Step 4: Simplify right side
    115,680.44x = 10,327,390,162.61
  5. Step 5: Solve for x
    x = 10,327,390,162.61/115,680.44
  6. Step 6: Final answer
    x = 89,275.17

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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.