Home / 157,976.01-218,001.83-86,355.81

Finding the Fourth Proportional to 157,976.01, 218,001.83 and 86,355.81

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Solution

The fourth proportional to 157,976.01, 218,001.83 and 86,355.81 is: 119,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,976.01 : 218,001.83 = 86,355.81 : x
  2. Step 2: Convert to fraction form
    157,976.01/218,001.83 = 86,355.81/x
  3. Step 3: Cross multiply
    157,976.01x = 218,001.83 × 86,355.81
  4. Step 4: Simplify right side
    157,976.01x = 18,825,724,179.35
  5. Step 5: Solve for x
    x = 18,825,724,179.35/157,976.01
  6. Step 6: Final answer
    x = 119,168.25

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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.