Home / 138,734,856-207,527,146.38-105,695,431.38

Finding the Fourth Proportional to 138,734,856, 207,527,146.38 and 105,695,431.38

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Solution

The fourth proportional to 138,734,856, 207,527,146.38 and 105,695,431.38 is: 158,104,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,734,856 : 207,527,146.38 = 105,695,431.38 : x
  2. Step 2: Convert to fraction form
    138,734,856/207,527,146.38 = 105,695,431.38/x
  3. Step 3: Cross multiply
    138,734,856x = 207,527,146.38 × 105,695,431.38
  4. Step 4: Simplify right side
    138,734,856x = 21,934,671,259,694,504
  5. Step 5: Solve for x
    x = 21,934,671,259,694,504/138,734,856
  6. Step 6: Final answer
    x = 158,104,977.31

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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.