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Finding the Fourth Proportional to 88,058.80, 131,857.80 and 83,911.60

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Solution

The fourth proportional to 88,058.80, 131,857.80 and 83,911.60 is: 125,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,058.80 : 131,857.80 = 83,911.60 : x
  2. Step 2: Convert to fraction form
    88,058.80/131,857.80 = 83,911.60/x
  3. Step 3: Cross multiply
    88,058.80x = 131,857.80 × 83,911.60
  4. Step 4: Simplify right side
    88,058.80x = 11,064,398,970.48
  5. Step 5: Solve for x
    x = 11,064,398,970.48/88,058.80
  6. Step 6: Final answer
    x = 125,647.85

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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.