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Finding the Fourth Proportional to 117,353.03, 161,947.10 and 63,637.88

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Solution

The fourth proportional to 117,353.03, 161,947.10 and 63,637.88 is: 87,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,353.03 : 161,947.10 = 63,637.88 : x
  2. Step 2: Convert to fraction form
    117,353.03/161,947.10 = 63,637.88/x
  3. Step 3: Cross multiply
    117,353.03x = 161,947.10 × 63,637.88
  4. Step 4: Simplify right side
    117,353.03x = 10,305,969,465.51
  5. Step 5: Solve for x
    x = 10,305,969,465.51/117,353.03
  6. Step 6: Final answer
    x = 87,820.23

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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.