Home / 158,693.64-218,999.38-87,072.36

Finding the Fourth Proportional to 158,693.64, 218,999.38 and 87,072.36

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Solution

The fourth proportional to 158,693.64, 218,999.38 and 87,072.36 is: 120,161.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,693.64 : 218,999.38 = 87,072.36 : x
  2. Step 2: Convert to fraction form
    158,693.64/218,999.38 = 87,072.36/x
  3. Step 3: Cross multiply
    158,693.64x = 218,999.38 × 87,072.36
  4. Step 4: Simplify right side
    158,693.64x = 19,068,792,855.14
  5. Step 5: Solve for x
    x = 19,068,792,855.14/158,693.64
  6. Step 6: Final answer
    x = 120,161.04

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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.