Home / 140,298.73-193,606.62-76,638.79

Finding the Fourth Proportional to 140,298.73, 193,606.62 and 76,638.79

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Solution

The fourth proportional to 140,298.73, 193,606.62 and 76,638.79 is: 105,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,298.73 : 193,606.62 = 76,638.79 : x
  2. Step 2: Convert to fraction form
    140,298.73/193,606.62 = 76,638.79/x
  3. Step 3: Cross multiply
    140,298.73x = 193,606.62 × 76,638.79
  4. Step 4: Simplify right side
    140,298.73x = 14,837,777,092.79
  5. Step 5: Solve for x
    x = 14,837,777,092.79/140,298.73
  6. Step 6: Final answer
    x = 105,758.46

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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.