Home / 160,819.08-221,857.56-100,404.69

Finding the Fourth Proportional to 160,819.08, 221,857.56 and 100,404.69

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Solution

The fourth proportional to 160,819.08, 221,857.56 and 100,404.69 is: 138,513.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,819.08 : 221,857.56 = 100,404.69 : x
  2. Step 2: Convert to fraction form
    160,819.08/221,857.56 = 100,404.69/x
  3. Step 3: Cross multiply
    160,819.08x = 221,857.56 × 100,404.69
  4. Step 4: Simplify right side
    160,819.08x = 22,275,539,535.96
  5. Step 5: Solve for x
    x = 22,275,539,535.96/160,819.08
  6. Step 6: Final answer
    x = 138,513.04

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1.5x scale

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.