Home / 188,541.49-260,180.56-103,657.89

Finding the Fourth Proportional to 188,541.49, 260,180.56 and 103,657.89

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Solution

The fourth proportional to 188,541.49, 260,180.56 and 103,657.89 is: 143,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,541.49 : 260,180.56 = 103,657.89 : x
  2. Step 2: Convert to fraction form
    188,541.49/260,180.56 = 103,657.89/x
  3. Step 3: Cross multiply
    188,541.49x = 260,180.56 × 103,657.89
  4. Step 4: Simplify right side
    188,541.49x = 26,969,767,868.62
  5. Step 5: Solve for x
    x = 26,969,767,868.62/188,541.49
  6. Step 6: Final answer
    x = 143,044.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.