Home / 106,024,759.20-159,037,138.80-85,869,367.20

Finding the Fourth Proportional to 106,024,759.20, 159,037,138.80 and 85,869,367.20

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Solution

The fourth proportional to 106,024,759.20, 159,037,138.80 and 85,869,367.20 is: 128,804,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,024,759.20 : 159,037,138.80 = 85,869,367.20 : x
  2. Step 2: Convert to fraction form
    106,024,759.20/159,037,138.80 = 85,869,367.20/x
  3. Step 3: Cross multiply
    106,024,759.20x = 159,037,138.80 × 85,869,367.20
  4. Step 4: Simplify right side
    106,024,759.20x = 13,656,418,470,054,568
  5. Step 5: Solve for x
    x = 13,656,418,470,054,568/106,024,759.20
  6. Step 6: Final answer
    x = 128,804,050.80

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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.