Home / 135,964.40-187,660.89-75,555.82

Finding the Fourth Proportional to 135,964.40, 187,660.89 and 75,555.82

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Solution

The fourth proportional to 135,964.40, 187,660.89 and 75,555.82 is: 104,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,964.40 : 187,660.89 = 75,555.82 : x
  2. Step 2: Convert to fraction form
    135,964.40/187,660.89 = 75,555.82/x
  3. Step 3: Cross multiply
    135,964.40x = 187,660.89 × 75,555.82
  4. Step 4: Simplify right side
    135,964.40x = 14,178,871,109.80
  5. Step 5: Solve for x
    x = 14,178,871,109.80/135,964.40
  6. Step 6: Final answer
    x = 104,283.70

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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.