Home / 109,028.60-163,421.40-42,446.60

Finding the Fourth Proportional to 109,028.60, 163,421.40 and 42,446.60

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Solution

The fourth proportional to 109,028.60, 163,421.40 and 42,446.60 is: 63,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,028.60 : 163,421.40 = 42,446.60 : x
  2. Step 2: Convert to fraction form
    109,028.60/163,421.40 = 42,446.60/x
  3. Step 3: Cross multiply
    109,028.60x = 163,421.40 × 42,446.60
  4. Step 4: Simplify right side
    109,028.60x = 6,936,682,797.24
  5. Step 5: Solve for x
    x = 6,936,682,797.24/109,028.60
  6. Step 6: Final answer
    x = 63,622.60

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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.