Home / 111,037.06-166,481.61-61,140.65

Finding the Fourth Proportional to 111,037.06, 166,481.61 and 61,140.65

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Solution

The fourth proportional to 111,037.06, 166,481.61 and 61,140.65 is: 91,670.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,037.06 : 166,481.61 = 61,140.65 : x
  2. Step 2: Convert to fraction form
    111,037.06/166,481.61 = 61,140.65/x
  3. Step 3: Cross multiply
    111,037.06x = 166,481.61 × 61,140.65
  4. Step 4: Simplify right side
    111,037.06x = 10,178,793,848.45
  5. Step 5: Solve for x
    x = 10,178,793,848.45/111,037.06
  6. Step 6: Final answer
    x = 91,670.24

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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.