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Finding the Fourth Proportional to 159,372.90, 219,938.76 and 87,746.22

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Solution

The fourth proportional to 159,372.90, 219,938.76 and 87,746.22 is: 121,092.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,372.90 : 219,938.76 = 87,746.22 : x
  2. Step 2: Convert to fraction form
    159,372.90/219,938.76 = 87,746.22/x
  3. Step 3: Cross multiply
    159,372.90x = 219,938.76 × 87,746.22
  4. Step 4: Simplify right side
    159,372.90x = 19,298,794,821.49
  5. Step 5: Solve for x
    x = 19,298,794,821.49/159,372.90
  6. Step 6: Final answer
    x = 121,092.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.