Home / 121,379.39-182,068.09-37,139.21

Finding the Fourth Proportional to 121,379.39, 182,068.09 and 37,139.21

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Solution

The fourth proportional to 121,379.39, 182,068.09 and 37,139.21 is: 55,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,379.39 : 182,068.09 = 37,139.21 : x
  2. Step 2: Convert to fraction form
    121,379.39/182,068.09 = 37,139.21/x
  3. Step 3: Cross multiply
    121,379.39x = 182,068.09 × 37,139.21
  4. Step 4: Simplify right side
    121,379.39x = 6,761,865,028.81
  5. Step 5: Solve for x
    x = 6,761,865,028.81/121,379.39
  6. Step 6: Final answer
    x = 55,708.51

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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.