Home / 140,356.90-193,690.20-76,693.33

Finding the Fourth Proportional to 140,356.90, 193,690.20 and 76,693.33

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Solution

The fourth proportional to 140,356.90, 193,690.20 and 76,693.33 is: 105,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,356.90 : 193,690.20 = 76,693.33 : x
  2. Step 2: Convert to fraction form
    140,356.90/193,690.20 = 76,693.33/x
  3. Step 3: Cross multiply
    140,356.90x = 193,690.20 × 76,693.33
  4. Step 4: Simplify right side
    140,356.90x = 14,854,746,426.37
  5. Step 5: Solve for x
    x = 14,854,746,426.37/140,356.90
  6. Step 6: Final answer
    x = 105,835.53

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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.