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Finding the Fourth Proportional to 117,353.76, 161,948.24 and 63,638.77

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Solution

The fourth proportional to 117,353.76, 161,948.24 and 63,638.77 is: 87,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,353.76 : 161,948.24 = 63,638.77 : x
  2. Step 2: Convert to fraction form
    117,353.76/161,948.24 = 63,638.77/x
  3. Step 3: Cross multiply
    117,353.76x = 161,948.24 × 63,638.77
  4. Step 4: Simplify right side
    117,353.76x = 10,306,185,669.33
  5. Step 5: Solve for x
    x = 10,306,185,669.33/117,353.76
  6. Step 6: Final answer
    x = 87,821.52

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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.