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Finding the Fourth Proportional to 163,759.76, 245,639.60 and 73,697.20

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Solution

The fourth proportional to 163,759.76, 245,639.60 and 73,697.20 is: 110,545.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,759.76 : 245,639.60 = 73,697.20 : x
  2. Step 2: Convert to fraction form
    163,759.76/245,639.60 = 73,697.20/x
  3. Step 3: Cross multiply
    163,759.76x = 245,639.60 × 73,697.20
  4. Step 4: Simplify right side
    163,759.76x = 18,102,950,729.12
  5. Step 5: Solve for x
    x = 18,102,950,729.12/163,759.76
  6. Step 6: Final answer
    x = 110,545.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.