Home / 109,024.70-163,537.05-71,699.90

Finding the Fourth Proportional to 109,024.70, 163,537.05 and 71,699.90

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Solution

The fourth proportional to 109,024.70, 163,537.05 and 71,699.90 is: 107,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,024.70 : 163,537.05 = 71,699.90 : x
  2. Step 2: Convert to fraction form
    109,024.70/163,537.05 = 71,699.90/x
  3. Step 3: Cross multiply
    109,024.70x = 163,537.05 × 71,699.90
  4. Step 4: Simplify right side
    109,024.70x = 11,725,590,131.30
  5. Step 5: Solve for x
    x = 11,725,590,131.30/109,024.70
  6. Step 6: Final answer
    x = 107,549.85

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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.