Home / 136,232.61-187,972.83-79,633.05

Finding the Fourth Proportional to 136,232.61, 187,972.83 and 79,633.05

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Solution

The fourth proportional to 136,232.61, 187,972.83 and 79,633.05 is: 109,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,232.61 : 187,972.83 = 79,633.05 : x
  2. Step 2: Convert to fraction form
    136,232.61/187,972.83 = 79,633.05/x
  3. Step 3: Cross multiply
    136,232.61x = 187,972.83 × 79,633.05
  4. Step 4: Simplify right side
    136,232.61x = 14,968,849,770.03
  5. Step 5: Solve for x
    x = 14,968,849,770.03/136,232.61
  6. Step 6: Final answer
    x = 109,877.14

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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.