Home / 168,579.09-232,643.71-100,635.50

Finding the Fourth Proportional to 168,579.09, 232,643.71 and 100,635.50

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Solution

The fourth proportional to 168,579.09, 232,643.71 and 100,635.50 is: 138,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,579.09 : 232,643.71 = 100,635.50 : x
  2. Step 2: Convert to fraction form
    168,579.09/232,643.71 = 100,635.50/x
  3. Step 3: Cross multiply
    168,579.09x = 232,643.71 × 100,635.50
  4. Step 4: Simplify right side
    168,579.09x = 23,412,216,077.71
  5. Step 5: Solve for x
    x = 23,412,216,077.71/168,579.09
  6. Step 6: Final answer
    x = 138,879.72

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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.