Home / 102,751,930.64-154,162,158.20-68,343,979.92

Finding the Fourth Proportional to 102,751,930.64, 154,162,158.20 and 68,343,979.92

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Solution

The fourth proportional to 102,751,930.64, 154,162,158.20 and 68,343,979.92 is: 102,538,758.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,751,930.64 : 154,162,158.20 = 68,343,979.92 : x
  2. Step 2: Convert to fraction form
    102,751,930.64/154,162,158.20 = 68,343,979.92/x
  3. Step 3: Cross multiply
    102,751,930.64x = 154,162,158.20 × 68,343,979.92
  4. Step 4: Simplify right side
    102,751,930.64x = 10,536,055,444,444,662
  5. Step 5: Solve for x
    x = 10,536,055,444,444,662/102,751,930.64
  6. Step 6: Final answer
    x = 102,538,758.92

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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.