Home / 143,980,873.14-198,699,243.47-81,259,162.03

Finding the Fourth Proportional to 143,980,873.14, 198,699,243.47 and 81,259,162.03

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Solution

The fourth proportional to 143,980,873.14, 198,699,243.47 and 81,259,162.03 is: 112,140,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,980,873.14 : 198,699,243.47 = 81,259,162.03 : x
  2. Step 2: Convert to fraction form
    143,980,873.14/198,699,243.47 = 81,259,162.03/x
  3. Step 3: Cross multiply
    143,980,873.14x = 198,699,243.47 × 81,259,162.03
  4. Step 4: Simplify right side
    143,980,873.14x = 16,146,134,020,367,150
  5. Step 5: Solve for x
    x = 16,146,134,020,367,150/143,980,873.14
  6. Step 6: Final answer
    x = 112,140,825.85

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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.