Home / 140,279.11-193,456.96-109,656.25

Finding the Fourth Proportional to 140,279.11, 193,456.96 and 109,656.25

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Solution

The fourth proportional to 140,279.11, 193,456.96 and 109,656.25 is: 151,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,279.11 : 193,456.96 = 109,656.25 : x
  2. Step 2: Convert to fraction form
    140,279.11/193,456.96 = 109,656.25/x
  3. Step 3: Cross multiply
    140,279.11x = 193,456.96 × 109,656.25
  4. Step 4: Simplify right side
    140,279.11x = 21,213,764,770
  5. Step 5: Solve for x
    x = 21,213,764,770/140,279.11
  6. Step 6: Final answer
    x = 151,225.40

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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.