Home / 172,828.80-238,433.60-105,799.68

Finding the Fourth Proportional to 172,828.80, 238,433.60 and 105,799.68

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Solution

The fourth proportional to 172,828.80, 238,433.60 and 105,799.68 is: 145,960.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,828.80 : 238,433.60 = 105,799.68 : x
  2. Step 2: Convert to fraction form
    172,828.80/238,433.60 = 105,799.68/x
  3. Step 3: Cross multiply
    172,828.80x = 238,433.60 × 105,799.68
  4. Step 4: Simplify right side
    172,828.80x = 25,226,198,581.25
  5. Step 5: Solve for x
    x = 25,226,198,581.25/172,828.80
  6. Step 6: Final answer
    x = 145,960.62

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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.