Home / 136,189.18-187,864.27-81,727.41

Finding the Fourth Proportional to 136,189.18, 187,864.27 and 81,727.41

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Solution

The fourth proportional to 136,189.18, 187,864.27 and 81,727.41 is: 112,737.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,189.18 : 187,864.27 = 81,727.41 : x
  2. Step 2: Convert to fraction form
    136,189.18/187,864.27 = 81,727.41/x
  3. Step 3: Cross multiply
    136,189.18x = 187,864.27 × 81,727.41
  4. Step 4: Simplify right side
    136,189.18x = 15,353,659,075.00
  5. Step 5: Solve for x
    x = 15,353,659,075.00/136,189.18
  6. Step 6: Final answer
    x = 112,737.73

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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.