Home / 117,212.31-161,753.40-63,497.19

Finding the Fourth Proportional to 117,212.31, 161,753.40 and 63,497.19

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Solution

The fourth proportional to 117,212.31, 161,753.40 and 63,497.19 is: 87,626.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212.31 : 161,753.40 = 63,497.19 : x
  2. Step 2: Convert to fraction form
    117,212.31/161,753.40 = 63,497.19/x
  3. Step 3: Cross multiply
    117,212.31x = 161,753.40 × 63,497.19
  4. Step 4: Simplify right side
    117,212.31x = 10,270,886,372.95
  5. Step 5: Solve for x
    x = 10,270,886,372.95/117,212.31
  6. Step 6: Final answer
    x = 87,626.35

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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.