Home / 102,095.70-140,891.28-56,777.82

Finding the Fourth Proportional to 102,095.70, 140,891.28 and 56,777.82

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Solution

The fourth proportional to 102,095.70, 140,891.28 and 56,777.82 is: 78,352.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,095.70 : 140,891.28 = 56,777.82 : x
  2. Step 2: Convert to fraction form
    102,095.70/140,891.28 = 56,777.82/x
  3. Step 3: Cross multiply
    102,095.70x = 140,891.28 × 56,777.82
  4. Step 4: Simplify right side
    102,095.70x = 7,999,499,735.41
  5. Step 5: Solve for x
    x = 7,999,499,735.41/102,095.70
  6. Step 6: Final answer
    x = 78,352.95

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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.