Home / 123,609,295.16-170,589,449.14-81,720,582.48

Finding the Fourth Proportional to 123,609,295.16, 170,589,449.14 and 81,720,582.48

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Solution

The fourth proportional to 123,609,295.16, 170,589,449.14 and 81,720,582.48 is: 112,780,103.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,609,295.16 : 170,589,449.14 = 81,720,582.48 : x
  2. Step 2: Convert to fraction form
    123,609,295.16/170,589,449.14 = 81,720,582.48/x
  3. Step 3: Cross multiply
    123,609,295.16x = 170,589,449.14 × 81,720,582.48
  4. Step 4: Simplify right side
    123,609,295.16x = 13,940,669,148,663,134
  5. Step 5: Solve for x
    x = 13,940,669,148,663,134/123,609,295.16
  6. Step 6: Final answer
    x = 112,780,103.88

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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.