Home / 111,428.09-166,984.98-61,530.65

Finding the Fourth Proportional to 111,428.09, 166,984.98 and 61,530.65

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Solution

The fourth proportional to 111,428.09, 166,984.98 and 61,530.65 is: 92,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,428.09 : 166,984.98 = 61,530.65 : x
  2. Step 2: Convert to fraction form
    111,428.09/166,984.98 = 61,530.65/x
  3. Step 3: Cross multiply
    111,428.09x = 166,984.98 × 61,530.65
  4. Step 4: Simplify right side
    111,428.09x = 10,274,694,359.64
  5. Step 5: Solve for x
    x = 10,274,694,359.64/111,428.09
  6. Step 6: Final answer
    x = 92,209.19

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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.