Home / 132,183.02-182,329.38-78,429.88

Finding the Fourth Proportional to 132,183.02, 182,329.38 and 78,429.88

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Solution

The fourth proportional to 132,183.02, 182,329.38 and 78,429.88 is: 108,183.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,183.02 : 182,329.38 = 78,429.88 : x
  2. Step 2: Convert to fraction form
    132,183.02/182,329.38 = 78,429.88/x
  3. Step 3: Cross multiply
    132,183.02x = 182,329.38 × 78,429.88
  4. Step 4: Simplify right side
    132,183.02x = 14,300,071,393.87
  5. Step 5: Solve for x
    x = 14,300,071,393.87/132,183.02
  6. Step 6: Final answer
    x = 108,183.88

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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.