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Finding the Fourth Proportional to 159,101.50, 219,558.29 and 118,447.40

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Solution

The fourth proportional to 159,101.50, 219,558.29 and 118,447.40 is: 163,456.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,101.50 : 219,558.29 = 118,447.40 : x
  2. Step 2: Convert to fraction form
    159,101.50/219,558.29 = 118,447.40/x
  3. Step 3: Cross multiply
    159,101.50x = 219,558.29 × 118,447.40
  4. Step 4: Simplify right side
    159,101.50x = 26,006,108,598.95
  5. Step 5: Solve for x
    x = 26,006,108,598.95/159,101.50
  6. Step 6: Final answer
    x = 163,456.09

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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.