Home / 140,507.39-193,899.75-75,976.17

Finding the Fourth Proportional to 140,507.39, 193,899.75 and 75,976.17

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Solution

The fourth proportional to 140,507.39, 193,899.75 and 75,976.17 is: 104,846.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,507.39 : 193,899.75 = 75,976.17 : x
  2. Step 2: Convert to fraction form
    140,507.39/193,899.75 = 75,976.17/x
  3. Step 3: Cross multiply
    140,507.39x = 193,899.75 × 75,976.17
  4. Step 4: Simplify right side
    140,507.39x = 14,731,760,368.96
  5. Step 5: Solve for x
    x = 14,731,760,368.96/140,507.39
  6. Step 6: Final answer
    x = 104,846.88

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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.