Home / 139,724.40-192,819.66-76,062.66

Finding the Fourth Proportional to 139,724.40, 192,819.66 and 76,062.66

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Solution

The fourth proportional to 139,724.40, 192,819.66 and 76,062.66 is: 104,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,724.40 : 192,819.66 = 76,062.66 : x
  2. Step 2: Convert to fraction form
    139,724.40/192,819.66 = 76,062.66/x
  3. Step 3: Cross multiply
    139,724.40x = 192,819.66 × 76,062.66
  4. Step 4: Simplify right side
    139,724.40x = 14,666,376,239.90
  5. Step 5: Solve for x
    x = 14,666,376,239.90/139,724.40
  6. Step 6: Final answer
    x = 104,966.46

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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.