Home / 137,856,005.20-206,784,007.80-112,346,837.20

Finding the Fourth Proportional to 137,856,005.20, 206,784,007.80 and 112,346,837.20

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Solution

The fourth proportional to 137,856,005.20, 206,784,007.80 and 112,346,837.20 is: 168,520,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,856,005.20 : 206,784,007.80 = 112,346,837.20 : x
  2. Step 2: Convert to fraction form
    137,856,005.20/206,784,007.80 = 112,346,837.20/x
  3. Step 3: Cross multiply
    137,856,005.20x = 206,784,007.80 × 112,346,837.20
  4. Step 4: Simplify right side
    137,856,005.20x = 23,231,529,259,870,132
  5. Step 5: Solve for x
    x = 23,231,529,259,870,132/137,856,005.20
  6. Step 6: Final answer
    x = 168,520,255.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.