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Finding the Fourth Proportional to 139,687.95, 209,588.04 and 63,822.45

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Solution

The fourth proportional to 139,687.95, 209,588.04 and 63,822.45 is: 95,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,687.95 : 209,588.04 = 63,822.45 : x
  2. Step 2: Convert to fraction form
    139,687.95/209,588.04 = 63,822.45/x
  3. Step 3: Cross multiply
    139,687.95x = 209,588.04 × 63,822.45
  4. Step 4: Simplify right side
    139,687.95x = 13,376,422,203.50
  5. Step 5: Solve for x
    x = 13,376,422,203.50/139,687.95
  6. Step 6: Final answer
    x = 95,759.31

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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.