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Finding the Fourth Proportional to 117,036.70, 161,510.22 and 63,321.75

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Solution

The fourth proportional to 117,036.70, 161,510.22 and 63,321.75 is: 87,383.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,036.70 : 161,510.22 = 63,321.75 : x
  2. Step 2: Convert to fraction form
    117,036.70/161,510.22 = 63,321.75/x
  3. Step 3: Cross multiply
    117,036.70x = 161,510.22 × 63,321.75
  4. Step 4: Simplify right side
    117,036.70x = 10,227,109,773.29
  5. Step 5: Solve for x
    x = 10,227,109,773.29/117,036.70
  6. Step 6: Final answer
    x = 87,383.79

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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.