Home / 132,971.07-183,500.07-76,382.43

Finding the Fourth Proportional to 132,971.07, 183,500.07 and 76,382.43

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Solution

The fourth proportional to 132,971.07, 183,500.07 and 76,382.43 is: 105,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,971.07 : 183,500.07 = 76,382.43 : x
  2. Step 2: Convert to fraction form
    132,971.07/183,500.07 = 76,382.43/x
  3. Step 3: Cross multiply
    132,971.07x = 183,500.07 × 76,382.43
  4. Step 4: Simplify right side
    132,971.07x = 14,016,181,251.77
  5. Step 5: Solve for x
    x = 14,016,181,251.77/132,971.07
  6. Step 6: Final answer
    x = 105,407.75

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Why These Related Problems?

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