Home / 132,979.56-183,493.60-76,390.92

Finding the Fourth Proportional to 132,979.56, 183,493.60 and 76,390.92

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Solution

The fourth proportional to 132,979.56, 183,493.60 and 76,390.92 is: 105,409.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,979.56 : 183,493.60 = 76,390.92 : x
  2. Step 2: Convert to fraction form
    132,979.56/183,493.60 = 76,390.92/x
  3. Step 3: Cross multiply
    132,979.56x = 183,493.60 × 76,390.92
  4. Step 4: Simplify right side
    132,979.56x = 14,017,244,918.11
  5. Step 5: Solve for x
    x = 14,017,244,918.11/132,979.56
  6. Step 6: Final answer
    x = 105,409.02

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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.