Home / 124,912.47-187,558.79-109,108.47

Finding the Fourth Proportional to 124,912.47, 187,558.79 and 109,108.47

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Solution

The fourth proportional to 124,912.47, 187,558.79 and 109,108.47 is: 163,828.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,912.47 : 187,558.79 = 109,108.47 : x
  2. Step 2: Convert to fraction form
    124,912.47/187,558.79 = 109,108.47/x
  3. Step 3: Cross multiply
    124,912.47x = 187,558.79 × 109,108.47
  4. Step 4: Simplify right side
    124,912.47x = 20,464,252,066.41
  5. Step 5: Solve for x
    x = 20,464,252,066.41/124,912.47
  6. Step 6: Final answer
    x = 163,828.74

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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.