Home / 140,109.43-193,351.62-76,448.60

Finding the Fourth Proportional to 140,109.43, 193,351.62 and 76,448.60

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Solution

The fourth proportional to 140,109.43, 193,351.62 and 76,448.60 is: 105,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,109.43 : 193,351.62 = 76,448.60 : x
  2. Step 2: Convert to fraction form
    140,109.43/193,351.62 = 76,448.60/x
  3. Step 3: Cross multiply
    140,109.43x = 193,351.62 × 76,448.60
  4. Step 4: Simplify right side
    140,109.43x = 14,781,460,656.73
  5. Step 5: Solve for x
    x = 14,781,460,656.73/140,109.43
  6. Step 6: Final answer
    x = 105,499.40

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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.