Home / 136,123.84-187,823.23-79,524.28

Finding the Fourth Proportional to 136,123.84, 187,823.23 and 79,524.28

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Solution

The fourth proportional to 136,123.84, 187,823.23 and 79,524.28 is: 109,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,123.84 : 187,823.23 = 79,524.28 : x
  2. Step 2: Convert to fraction form
    136,123.84/187,823.23 = 79,524.28/x
  3. Step 3: Cross multiply
    136,123.84x = 187,823.23 × 79,524.28
  4. Step 4: Simplify right side
    136,123.84x = 14,936,507,133.02
  5. Step 5: Solve for x
    x = 14,936,507,133.02/136,123.84
  6. Step 6: Final answer
    x = 109,727.34

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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.