Home / 107,767,851.80-161,753,976.70-66,703,073.58

Finding the Fourth Proportional to 107,767,851.80, 161,753,976.70 and 66,703,073.58

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Solution

The fourth proportional to 107,767,851.80, 161,753,976.70 and 66,703,073.58 is: 100,117,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,767,851.80 : 161,753,976.70 = 66,703,073.58 : x
  2. Step 2: Convert to fraction form
    107,767,851.80/161,753,976.70 = 66,703,073.58/x
  3. Step 3: Cross multiply
    107,767,851.80x = 161,753,976.70 × 66,703,073.58
  4. Step 4: Simplify right side
    107,767,851.80x = 10,789,487,409,677,704
  5. Step 5: Solve for x
    x = 10,789,487,409,677,704/107,767,851.80
  6. Step 6: Final answer
    x = 100,117,866.59

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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.