Home / 123,181,228.80-170,027,976.96-71,005,138.56

Finding the Fourth Proportional to 123,181,228.80, 170,027,976.96 and 71,005,138.56

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Solution

The fourth proportional to 123,181,228.80, 170,027,976.96 and 71,005,138.56 is: 98,008,927.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,181,228.80 : 170,027,976.96 = 71,005,138.56 : x
  2. Step 2: Convert to fraction form
    123,181,228.80/170,027,976.96 = 71,005,138.56/x
  3. Step 3: Cross multiply
    123,181,228.80x = 170,027,976.96 × 71,005,138.56
  4. Step 4: Simplify right side
    123,181,228.80x = 12,072,860,063,121,288
  5. Step 5: Solve for x
    x = 12,072,860,063,121,288/123,181,228.80
  6. Step 6: Final answer
    x = 98,008,927.02

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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.