Home / 109,942.20-151,723.90-64,619.52

Finding the Fourth Proportional to 109,942.20, 151,723.90 and 64,619.52

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Solution

The fourth proportional to 109,942.20, 151,723.90 and 64,619.52 is: 89,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,942.20 : 151,723.90 = 64,619.52 : x
  2. Step 2: Convert to fraction form
    109,942.20/151,723.90 = 64,619.52/x
  3. Step 3: Cross multiply
    109,942.20x = 151,723.90 × 64,619.52
  4. Step 4: Simplify right side
    109,942.20x = 9,804,325,590.53
  5. Step 5: Solve for x
    x = 9,804,325,590.53/109,942.20
  6. Step 6: Final answer
    x = 89,177.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.