Home / 187,801.72-259,173.02-102,918.79

Finding the Fourth Proportional to 187,801.72, 259,173.02 and 102,918.79

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Solution

The fourth proportional to 187,801.72, 259,173.02 and 102,918.79 is: 142,031.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,801.72 : 259,173.02 = 102,918.79 : x
  2. Step 2: Convert to fraction form
    187,801.72/259,173.02 = 102,918.79/x
  3. Step 3: Cross multiply
    187,801.72x = 259,173.02 × 102,918.79
  4. Step 4: Simplify right side
    187,801.72x = 26,673,773,104.45
  5. Step 5: Solve for x
    x = 26,673,773,104.45/187,801.72
  6. Step 6: Final answer
    x = 142,031.57

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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.