Home / 168,877.35-253,385.78-74,058.45

Finding the Fourth Proportional to 168,877.35, 253,385.78 and 74,058.45

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Solution

The fourth proportional to 168,877.35, 253,385.78 and 74,058.45 is: 111,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,877.35 : 253,385.78 = 74,058.45 : x
  2. Step 2: Convert to fraction form
    168,877.35/253,385.78 = 74,058.45/x
  3. Step 3: Cross multiply
    168,877.35x = 253,385.78 × 74,058.45
  4. Step 4: Simplify right side
    168,877.35x = 18,765,357,748.55
  5. Step 5: Solve for x
    x = 18,765,357,748.55/168,877.35
  6. Step 6: Final answer
    x = 111,118.26

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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.