Home / 187,839.81-259,209.32-102,940.47

Finding the Fourth Proportional to 187,839.81, 259,209.32 and 102,940.47

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Solution

The fourth proportional to 187,839.81, 259,209.32 and 102,940.47 is: 142,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,839.81 : 259,209.32 = 102,940.47 : x
  2. Step 2: Convert to fraction form
    187,839.81/259,209.32 = 102,940.47/x
  3. Step 3: Cross multiply
    187,839.81x = 259,209.32 × 102,940.47
  4. Step 4: Simplify right side
    187,839.81x = 26,683,128,714.48
  5. Step 5: Solve for x
    x = 26,683,128,714.48/187,839.81
  6. Step 6: Final answer
    x = 142,052.58

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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.