Home / 137,579.10-205,979.85-123,582.30

Finding the Fourth Proportional to 137,579.10, 205,979.85 and 123,582.30

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Solution

The fourth proportional to 137,579.10, 205,979.85 and 123,582.30 is: 185,024.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,579.10 : 205,979.85 = 123,582.30 : x
  2. Step 2: Convert to fraction form
    137,579.10/205,979.85 = 123,582.30/x
  3. Step 3: Cross multiply
    137,579.10x = 205,979.85 × 123,582.30
  4. Step 4: Simplify right side
    137,579.10x = 25,455,463,616.66
  5. Step 5: Solve for x
    x = 25,455,463,616.66/137,579.10
  6. Step 6: Final answer
    x = 185,024.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.