Home / 109,468.62-163,942.28-69,903.18

Finding the Fourth Proportional to 109,468.62, 163,942.28 and 69,903.18

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Solution

The fourth proportional to 109,468.62, 163,942.28 and 69,903.18 is: 104,688.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,468.62 : 163,942.28 = 69,903.18 : x
  2. Step 2: Convert to fraction form
    109,468.62/163,942.28 = 69,903.18/x
  3. Step 3: Cross multiply
    109,468.62x = 163,942.28 × 69,903.18
  4. Step 4: Simplify right side
    109,468.62x = 11,460,086,708.45
  5. Step 5: Solve for x
    x = 11,460,086,708.45/109,468.62
  6. Step 6: Final answer
    x = 104,688.33

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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.