Home / 140,305.31-193,625.57-76,647.21

Finding the Fourth Proportional to 140,305.31, 193,625.57 and 76,647.21

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Solution

The fourth proportional to 140,305.31, 193,625.57 and 76,647.21 is: 105,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,305.31 : 193,625.57 = 76,647.21 : x
  2. Step 2: Convert to fraction form
    140,305.31/193,625.57 = 76,647.21/x
  3. Step 3: Cross multiply
    140,305.31x = 193,625.57 × 76,647.21
  4. Step 4: Simplify right side
    140,305.31x = 14,840,859,725.16
  5. Step 5: Solve for x
    x = 14,840,859,725.16/140,305.31
  6. Step 6: Final answer
    x = 105,775.47

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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.