Home / 109,076.76-163,613.91-42,563.61

Finding the Fourth Proportional to 109,076.76, 163,613.91 and 42,563.61

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Solution

The fourth proportional to 109,076.76, 163,613.91 and 42,563.61 is: 63,844.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,076.76 : 163,613.91 = 42,563.61 : x
  2. Step 2: Convert to fraction form
    109,076.76/163,613.91 = 42,563.61/x
  3. Step 3: Cross multiply
    109,076.76x = 163,613.91 × 42,563.61
  4. Step 4: Simplify right side
    109,076.76x = 6,963,998,655.82
  5. Step 5: Solve for x
    x = 6,963,998,655.82/109,076.76
  6. Step 6: Final answer
    x = 63,844.94

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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.