Home / 139,820.76-192,951.66-76,158.36

Finding the Fourth Proportional to 139,820.76, 192,951.66 and 76,158.36

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Solution

The fourth proportional to 139,820.76, 192,951.66 and 76,158.36 is: 105,098.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,820.76 : 192,951.66 = 76,158.36 : x
  2. Step 2: Convert to fraction form
    139,820.76/192,951.66 = 76,158.36/x
  3. Step 3: Cross multiply
    139,820.76x = 192,951.66 × 76,158.36
  4. Step 4: Simplify right side
    139,820.76x = 14,694,881,984.88
  5. Step 5: Solve for x
    x = 14,694,881,984.88/139,820.76
  6. Step 6: Final answer
    x = 105,098.00

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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.