Home / 132,768.55-183,136.87-79,013.44

Finding the Fourth Proportional to 132,768.55, 183,136.87 and 79,013.44

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Solution

The fourth proportional to 132,768.55, 183,136.87 and 79,013.44 is: 108,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,768.55 : 183,136.87 = 79,013.44 : x
  2. Step 2: Convert to fraction form
    132,768.55/183,136.87 = 79,013.44/x
  3. Step 3: Cross multiply
    132,768.55x = 183,136.87 × 79,013.44
  4. Step 4: Simplify right side
    132,768.55x = 14,470,274,089.53
  5. Step 5: Solve for x
    x = 14,470,274,089.53/132,768.55
  6. Step 6: Final answer
    x = 108,988.72

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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.