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Finding the Fourth Proportional to 159,267.41, 219,783.51 and 87,640.73

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Solution

The fourth proportional to 159,267.41, 219,783.51 and 87,640.73 is: 120,941.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,267.41 : 219,783.51 = 87,640.73 : x
  2. Step 2: Convert to fraction form
    159,267.41/219,783.51 = 87,640.73/x
  3. Step 3: Cross multiply
    159,267.41x = 219,783.51 × 87,640.73
  4. Step 4: Simplify right side
    159,267.41x = 19,261,987,258.36
  5. Step 5: Solve for x
    x = 19,261,987,258.36/159,267.41
  6. Step 6: Final answer
    x = 120,941.17

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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.