Home / 151,582.92-209,029.56-100,577.76

Finding the Fourth Proportional to 151,582.92, 209,029.56 and 100,577.76

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Solution

The fourth proportional to 151,582.92, 209,029.56 and 100,577.76 is: 138,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,582.92 : 209,029.56 = 100,577.76 : x
  2. Step 2: Convert to fraction form
    151,582.92/209,029.56 = 100,577.76/x
  3. Step 3: Cross multiply
    151,582.92x = 209,029.56 × 100,577.76
  4. Step 4: Simplify right side
    151,582.92x = 21,023,724,918.59
  5. Step 5: Solve for x
    x = 21,023,724,918.59/151,582.92
  6. Step 6: Final answer
    x = 138,694.55

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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.