Home / 102,103,826.24-140,955,311.76-78,846,743.36

Finding the Fourth Proportional to 102,103,826.24, 140,955,311.76 and 78,846,743.36

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Solution

The fourth proportional to 102,103,826.24, 140,955,311.76 and 78,846,743.36 is: 108,848,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,103,826.24 : 140,955,311.76 = 78,846,743.36 : x
  2. Step 2: Convert to fraction form
    102,103,826.24/140,955,311.76 = 78,846,743.36/x
  3. Step 3: Cross multiply
    102,103,826.24x = 140,955,311.76 × 78,846,743.36
  4. Step 4: Simplify right side
    102,103,826.24x = 11,113,867,291,569,510
  5. Step 5: Solve for x
    x = 11,113,867,291,569,510/102,103,826.24
  6. Step 6: Final answer
    x = 108,848,685.70

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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.