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Finding the Fourth Proportional to 159,638.76, 220,297.20 and 88,017.54

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Solution

The fourth proportional to 159,638.76, 220,297.20 and 88,017.54 is: 121,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,638.76 : 220,297.20 = 88,017.54 : x
  2. Step 2: Convert to fraction form
    159,638.76/220,297.20 = 88,017.54/x
  3. Step 3: Cross multiply
    159,638.76x = 220,297.20 × 88,017.54
  4. Step 4: Simplify right side
    159,638.76x = 19,390,017,612.89
  5. Step 5: Solve for x
    x = 19,390,017,612.89/159,638.76
  6. Step 6: Final answer
    x = 121,461.84

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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.