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Finding the Fourth Proportional to 163,557.77, 225,710.96 and 90,961.67

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Solution

The fourth proportional to 163,557.77, 225,710.96 and 90,961.67 is: 125,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,557.77 : 225,710.96 = 90,961.67 : x
  2. Step 2: Convert to fraction form
    163,557.77/225,710.96 = 90,961.67/x
  3. Step 3: Cross multiply
    163,557.77x = 225,710.96 × 90,961.67
  4. Step 4: Simplify right side
    163,557.77x = 20,531,046,650.58
  5. Step 5: Solve for x
    x = 20,531,046,650.58/163,557.77
  6. Step 6: Final answer
    x = 125,527.80

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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.