Home / 165,005.65-227,711.42-93,385.72

Finding the Fourth Proportional to 165,005.65, 227,711.42 and 93,385.72

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Solution

The fourth proportional to 165,005.65, 227,711.42 and 93,385.72 is: 128,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,005.65 : 227,711.42 = 93,385.72 : x
  2. Step 2: Convert to fraction form
    165,005.65/227,711.42 = 93,385.72/x
  3. Step 3: Cross multiply
    165,005.65x = 227,711.42 × 93,385.72
  4. Step 4: Simplify right side
    165,005.65x = 21,264,994,908.92
  5. Step 5: Solve for x
    x = 21,264,994,908.92/165,005.65
  6. Step 6: Final answer
    x = 128,874.34

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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.