Home / 110,121.32-151,964.29-64,788.91

Finding the Fourth Proportional to 110,121.32, 151,964.29 and 64,788.91

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Solution

The fourth proportional to 110,121.32, 151,964.29 and 64,788.91 is: 89,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,121.32 : 151,964.29 = 64,788.91 : x
  2. Step 2: Convert to fraction form
    110,121.32/151,964.29 = 64,788.91/x
  3. Step 3: Cross multiply
    110,121.32x = 151,964.29 × 64,788.91
  4. Step 4: Simplify right side
    110,121.32x = 9,845,600,708.02
  5. Step 5: Solve for x
    x = 9,845,600,708.02/110,121.32
  6. Step 6: Final answer
    x = 89,406.85

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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.