Home / 159,450.48-220,040.64-87,828.84

Finding the Fourth Proportional to 159,450.48, 220,040.64 and 87,828.84

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Solution

The fourth proportional to 159,450.48, 220,040.64 and 87,828.84 is: 121,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,450.48 : 220,040.64 = 87,828.84 : x
  2. Step 2: Convert to fraction form
    159,450.48/220,040.64 = 87,828.84/x
  3. Step 3: Cross multiply
    159,450.48x = 220,040.64 × 87,828.84
  4. Step 4: Simplify right side
    159,450.48x = 19,325,914,164.06
  5. Step 5: Solve for x
    x = 19,325,914,164.06/159,450.48
  6. Step 6: Final answer
    x = 121,203.24

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1.5x scale

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.