Home / 109,028.10-163,420.65-42,446.10

Finding the Fourth Proportional to 109,028.10, 163,420.65 and 42,446.10

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Solution

The fourth proportional to 109,028.10, 163,420.65 and 42,446.10 is: 63,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,028.10 : 163,420.65 = 42,446.10 : x
  2. Step 2: Convert to fraction form
    109,028.10/163,420.65 = 42,446.10/x
  3. Step 3: Cross multiply
    109,028.10x = 163,420.65 × 42,446.10
  4. Step 4: Simplify right side
    109,028.10x = 6,936,569,251.97
  5. Step 5: Solve for x
    x = 6,936,569,251.97/109,028.10
  6. Step 6: Final answer
    x = 63,621.85

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1.5x scale

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.