Home / 199,531.80-299,297.70-124,736.40

Finding the Fourth Proportional to 199,531.80, 299,297.70 and 124,736.40

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Solution

The fourth proportional to 199,531.80, 299,297.70 and 124,736.40 is: 187,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,531.80 : 299,297.70 = 124,736.40 : x
  2. Step 2: Convert to fraction form
    199,531.80/299,297.70 = 124,736.40/x
  3. Step 3: Cross multiply
    199,531.80x = 299,297.70 × 124,736.40
  4. Step 4: Simplify right side
    199,531.80x = 37,333,317,626.28
  5. Step 5: Solve for x
    x = 37,333,317,626.28/199,531.80
  6. Step 6: Final answer
    x = 187,104.60

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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.