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Finding the Fourth Proportional to 124,005, 186,007.59 and 40,899

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Solution

The fourth proportional to 124,005, 186,007.59 and 40,899 is: 61,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,005 : 186,007.59 = 40,899 : x
  2. Step 2: Convert to fraction form
    124,005/186,007.59 = 40,899/x
  3. Step 3: Cross multiply
    124,005x = 186,007.59 × 40,899
  4. Step 4: Simplify right side
    124,005x = 7,607,524,423.41
  5. Step 5: Solve for x
    x = 7,607,524,423.41/124,005
  6. Step 6: Final answer
    x = 61,348.53

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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.