Home / 131,021.39-180,808.61-74,432.76

Finding the Fourth Proportional to 131,021.39, 180,808.61 and 74,432.76

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Solution

The fourth proportional to 131,021.39, 180,808.61 and 74,432.76 is: 102,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,021.39 : 180,808.61 = 74,432.76 : x
  2. Step 2: Convert to fraction form
    131,021.39/180,808.61 = 74,432.76/x
  3. Step 3: Cross multiply
    131,021.39x = 180,808.61 × 74,432.76
  4. Step 4: Simplify right side
    131,021.39x = 13,458,083,501.90
  5. Step 5: Solve for x
    x = 13,458,083,501.90/131,021.39
  6. Step 6: Final answer
    x = 102,716.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.