Home / 111,964.92-154,511.70-60,977.72

Finding the Fourth Proportional to 111,964.92, 154,511.70 and 60,977.72

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Solution

The fourth proportional to 111,964.92, 154,511.70 and 60,977.72 is: 84,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,964.92 : 154,511.70 = 60,977.72 : x
  2. Step 2: Convert to fraction form
    111,964.92/154,511.70 = 60,977.72/x
  3. Step 3: Cross multiply
    111,964.92x = 154,511.70 × 60,977.72
  4. Step 4: Simplify right side
    111,964.92x = 9,421,771,179.32
  5. Step 5: Solve for x
    x = 9,421,771,179.32/111,964.92
  6. Step 6: Final answer
    x = 84,149.31

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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.