Home / 158,933.77-219,330.93-86,338.02

Finding the Fourth Proportional to 158,933.77, 219,330.93 and 86,338.02

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Solution

The fourth proportional to 158,933.77, 219,330.93 and 86,338.02 is: 119,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,933.77 : 219,330.93 = 86,338.02 : x
  2. Step 2: Convert to fraction form
    158,933.77/219,330.93 = 86,338.02/x
  3. Step 3: Cross multiply
    158,933.77x = 219,330.93 × 86,338.02
  4. Step 4: Simplify right side
    158,933.77x = 18,936,598,220.96
  5. Step 5: Solve for x
    x = 18,936,598,220.96/158,933.77
  6. Step 6: Final answer
    x = 119,147.73

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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.