Home / 109,579.60-164,247.90-42,997.60

Finding the Fourth Proportional to 109,579.60, 164,247.90 and 42,997.60

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Solution

The fourth proportional to 109,579.60, 164,247.90 and 42,997.60 is: 64,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,579.60 : 164,247.90 = 42,997.60 : x
  2. Step 2: Convert to fraction form
    109,579.60/164,247.90 = 42,997.60/x
  3. Step 3: Cross multiply
    109,579.60x = 164,247.90 × 42,997.60
  4. Step 4: Simplify right side
    109,579.60x = 7,062,265,505.04
  5. Step 5: Solve for x
    x = 7,062,265,505.04/109,579.60
  6. Step 6: Final answer
    x = 64,448.72

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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.