Home / 132,979.80-183,487.02-79,269.84

Finding the Fourth Proportional to 132,979.80, 183,487.02 and 79,269.84

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Solution

The fourth proportional to 132,979.80, 183,487.02 and 79,269.84 is: 109,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,979.80 : 183,487.02 = 79,269.84 : x
  2. Step 2: Convert to fraction form
    132,979.80/183,487.02 = 79,269.84/x
  3. Step 3: Cross multiply
    132,979.80x = 183,487.02 × 79,269.84
  4. Step 4: Simplify right side
    132,979.80x = 14,544,986,717.48
  5. Step 5: Solve for x
    x = 14,544,986,717.48/132,979.80
  6. Step 6: Final answer
    x = 109,377.41

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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.