Home / 118,670.35-163,763.68-64,221.26

Finding the Fourth Proportional to 118,670.35, 163,763.68 and 64,221.26

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Solution

The fourth proportional to 118,670.35, 163,763.68 and 64,221.26 is: 88,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,670.35 : 163,763.68 = 64,221.26 : x
  2. Step 2: Convert to fraction form
    118,670.35/163,763.68 = 64,221.26/x
  3. Step 3: Cross multiply
    118,670.35x = 163,763.68 × 64,221.26
  4. Step 4: Simplify right side
    118,670.35x = 10,517,109,871.84
  5. Step 5: Solve for x
    x = 10,517,109,871.84/118,670.35
  6. Step 6: Final answer
    x = 88,624.58

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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.