Home / 140,109.28-193,351.56-76,448.44

Finding the Fourth Proportional to 140,109.28, 193,351.56 and 76,448.44

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Solution

The fourth proportional to 140,109.28, 193,351.56 and 76,448.44 is: 105,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,109.28 : 193,351.56 = 76,448.44 : x
  2. Step 2: Convert to fraction form
    140,109.28/193,351.56 = 76,448.44/x
  3. Step 3: Cross multiply
    140,109.28x = 193,351.56 × 76,448.44
  4. Step 4: Simplify right side
    140,109.28x = 14,781,425,088.57
  5. Step 5: Solve for x
    x = 14,781,425,088.57/140,109.28
  6. Step 6: Final answer
    x = 105,499.26

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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.