Home / 140,357.40-193,690.89-76,693.83

Finding the Fourth Proportional to 140,357.40, 193,690.89 and 76,693.83

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Solution

The fourth proportional to 140,357.40, 193,690.89 and 76,693.83 is: 105,836.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,357.40 : 193,690.89 = 76,693.83 : x
  2. Step 2: Convert to fraction form
    140,357.40/193,690.89 = 76,693.83/x
  3. Step 3: Cross multiply
    140,357.40x = 193,690.89 × 76,693.83
  4. Step 4: Simplify right side
    140,357.40x = 14,854,896,190.21
  5. Step 5: Solve for x
    x = 14,854,896,190.21/140,357.40
  6. Step 6: Final answer
    x = 105,836.22

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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.