Home / 121,910.12-182,826.06-38,784.68

Finding the Fourth Proportional to 121,910.12, 182,826.06 and 38,784.68

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Solution

The fourth proportional to 121,910.12, 182,826.06 and 38,784.68 is: 58,164.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,910.12 : 182,826.06 = 38,784.68 : x
  2. Step 2: Convert to fraction form
    121,910.12/182,826.06 = 38,784.68/x
  3. Step 3: Cross multiply
    121,910.12x = 182,826.06 × 38,784.68
  4. Step 4: Simplify right side
    121,910.12x = 7,090,850,232.76
  5. Step 5: Solve for x
    x = 7,090,850,232.76/121,910.12
  6. Step 6: Final answer
    x = 58,164.57

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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.