Home / 187,431.31-258,661.65-102,548.35

Finding the Fourth Proportional to 187,431.31, 258,661.65 and 102,548.35

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Solution

The fourth proportional to 187,431.31, 258,661.65 and 102,548.35 is: 141,520.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,431.31 : 258,661.65 = 102,548.35 : x
  2. Step 2: Convert to fraction form
    187,431.31/258,661.65 = 102,548.35/x
  3. Step 3: Cross multiply
    187,431.31x = 258,661.65 × 102,548.35
  4. Step 4: Simplify right side
    187,431.31x = 26,525,325,415.78
  5. Step 5: Solve for x
    x = 26,525,325,415.78/187,431.31
  6. Step 6: Final answer
    x = 141,520.25

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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.