Home / 160,466.34-221,447-87,872.29

Finding the Fourth Proportional to 160,466.34, 221,447 and 87,872.29

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Solution

The fourth proportional to 160,466.34, 221,447 and 87,872.29 is: 121,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,466.34 : 221,447 = 87,872.29 : x
  2. Step 2: Convert to fraction form
    160,466.34/221,447 = 87,872.29/x
  3. Step 3: Cross multiply
    160,466.34x = 221,447 × 87,872.29
  4. Step 4: Simplify right side
    160,466.34x = 19,459,055,003.63
  5. Step 5: Solve for x
    x = 19,459,055,003.63/160,466.34
  6. Step 6: Final answer
    x = 121,265.65

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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.