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Finding the Fourth Proportional to 160,420.82, 221,378.04 and 88,799.30

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Solution

The fourth proportional to 160,420.82, 221,378.04 and 88,799.30 is: 122,541.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,420.82 : 221,378.04 = 88,799.30 : x
  2. Step 2: Convert to fraction form
    160,420.82/221,378.04 = 88,799.30/x
  3. Step 3: Cross multiply
    160,420.82x = 221,378.04 × 88,799.30
  4. Step 4: Simplify right side
    160,420.82x = 19,658,214,987.37
  5. Step 5: Solve for x
    x = 19,658,214,987.37/160,420.82
  6. Step 6: Final answer
    x = 122,541.54

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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.