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Finding the Fourth Proportional to 163,010.56, 224,965.38 and 91,395.20

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Solution

The fourth proportional to 163,010.56, 224,965.38 and 91,395.20 is: 126,131.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,010.56 : 224,965.38 = 91,395.20 : x
  2. Step 2: Convert to fraction form
    163,010.56/224,965.38 = 91,395.20/x
  3. Step 3: Cross multiply
    163,010.56x = 224,965.38 × 91,395.20
  4. Step 4: Simplify right side
    163,010.56x = 20,560,755,898.18
  5. Step 5: Solve for x
    x = 20,560,755,898.18/163,010.56
  6. Step 6: Final answer
    x = 126,131.44

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1.5x scale

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.