Home / 146,991.06-220,415.27-86,217.93

Finding the Fourth Proportional to 146,991.06, 220,415.27 and 86,217.93

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Solution

The fourth proportional to 146,991.06, 220,415.27 and 86,217.93 is: 129,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,991.06 : 220,415.27 = 86,217.93 : x
  2. Step 2: Convert to fraction form
    146,991.06/220,415.27 = 86,217.93/x
  3. Step 3: Cross multiply
    146,991.06x = 220,415.27 × 86,217.93
  4. Step 4: Simplify right side
    146,991.06x = 19,003,747,888.70
  5. Step 5: Solve for x
    x = 19,003,747,888.70/146,991.06
  6. Step 6: Final answer
    x = 129,285.06

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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.