Home / 160,388.05-221,328.70-88,761.37

Finding the Fourth Proportional to 160,388.05, 221,328.70 and 88,761.37

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Solution

The fourth proportional to 160,388.05, 221,328.70 and 88,761.37 is: 122,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,388.05 : 221,328.70 = 88,761.37 : x
  2. Step 2: Convert to fraction form
    160,388.05/221,328.70 = 88,761.37/x
  3. Step 3: Cross multiply
    160,388.05x = 221,328.70 × 88,761.37
  4. Step 4: Simplify right side
    160,388.05x = 19,645,438,632.32
  5. Step 5: Solve for x
    x = 19,645,438,632.32/160,388.05
  6. Step 6: Final answer
    x = 122,486.92

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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.