Home / 111,429.09-166,986.48-61,531.65

Finding the Fourth Proportional to 111,429.09, 166,986.48 and 61,531.65

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Solution

The fourth proportional to 111,429.09, 166,986.48 and 61,531.65 is: 92,210.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,429.09 : 166,986.48 = 61,531.65 : x
  2. Step 2: Convert to fraction form
    111,429.09/166,986.48 = 61,531.65/x
  3. Step 3: Cross multiply
    111,429.09x = 166,986.48 × 61,531.65
  4. Step 4: Simplify right side
    111,429.09x = 10,274,953,642.09
  5. Step 5: Solve for x
    x = 10,274,953,642.09/111,429.09
  6. Step 6: Final answer
    x = 92,210.69

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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.