Home / 110,121.32-151,964.30-64,788.92

Finding the Fourth Proportional to 110,121.32, 151,964.30 and 64,788.92

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Solution

The fourth proportional to 110,121.32, 151,964.30 and 64,788.92 is: 89,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,121.32 : 151,964.30 = 64,788.92 : x
  2. Step 2: Convert to fraction form
    110,121.32/151,964.30 = 64,788.92/x
  3. Step 3: Cross multiply
    110,121.32x = 151,964.30 × 64,788.92
  4. Step 4: Simplify right side
    110,121.32x = 9,845,601,791.79
  5. Step 5: Solve for x
    x = 9,845,601,791.79/110,121.32
  6. Step 6: Final answer
    x = 89,406.87

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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.