Home / 112,579.12-169,062.07-99,957.30

Finding the Fourth Proportional to 112,579.12, 169,062.07 and 99,957.30

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Solution

The fourth proportional to 112,579.12, 169,062.07 and 99,957.30 is: 150,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,579.12 : 169,062.07 = 99,957.30 : x
  2. Step 2: Convert to fraction form
    112,579.12/169,062.07 = 99,957.30/x
  3. Step 3: Cross multiply
    112,579.12x = 169,062.07 × 99,957.30
  4. Step 4: Simplify right side
    112,579.12x = 16,898,987,204.30
  5. Step 5: Solve for x
    x = 16,898,987,204.30/112,579.12
  6. Step 6: Final answer
    x = 150,107.65

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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.