Home / 124,694.37-187,099.88-72,148.05

Finding the Fourth Proportional to 124,694.37, 187,099.88 and 72,148.05

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Solution

The fourth proportional to 124,694.37, 187,099.88 and 72,148.05 is: 108,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,694.37 : 187,099.88 = 72,148.05 : x
  2. Step 2: Convert to fraction form
    124,694.37/187,099.88 = 72,148.05/x
  3. Step 3: Cross multiply
    124,694.37x = 187,099.88 × 72,148.05
  4. Step 4: Simplify right side
    124,694.37x = 13,498,891,136.49
  5. Step 5: Solve for x
    x = 13,498,891,136.49/124,694.37
  6. Step 6: Final answer
    x = 108,255.82

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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.