Home / 125,012.75-187,538.66-40,753.36

Finding the Fourth Proportional to 125,012.75, 187,538.66 and 40,753.36

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Solution

The fourth proportional to 125,012.75, 187,538.66 and 40,753.36 is: 61,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,012.75 : 187,538.66 = 40,753.36 : x
  2. Step 2: Convert to fraction form
    125,012.75/187,538.66 = 40,753.36/x
  3. Step 3: Cross multiply
    125,012.75x = 187,538.66 × 40,753.36
  4. Step 4: Simplify right side
    125,012.75x = 7,642,829,383.44
  5. Step 5: Solve for x
    x = 7,642,829,383.44/125,012.75
  6. Step 6: Final answer
    x = 61,136.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.