Home / 165,942.75-229,018.28-102,278.91

Finding the Fourth Proportional to 165,942.75, 229,018.28 and 102,278.91

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Solution

The fourth proportional to 165,942.75, 229,018.28 and 102,278.91 is: 141,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,942.75 : 229,018.28 = 102,278.91 : x
  2. Step 2: Convert to fraction form
    165,942.75/229,018.28 = 102,278.91/x
  3. Step 3: Cross multiply
    165,942.75x = 229,018.28 × 102,278.91
  4. Step 4: Simplify right side
    165,942.75x = 23,423,739,537.08
  5. Step 5: Solve for x
    x = 23,423,739,537.08/165,942.75
  6. Step 6: Final answer
    x = 141,155.55

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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.