Home / 159,060.54-219,500.64-87,439.89

Finding the Fourth Proportional to 159,060.54, 219,500.64 and 87,439.89

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Solution

The fourth proportional to 159,060.54, 219,500.64 and 87,439.89 is: 120,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,060.54 : 219,500.64 = 87,439.89 : x
  2. Step 2: Convert to fraction form
    159,060.54/219,500.64 = 87,439.89/x
  3. Step 3: Cross multiply
    159,060.54x = 219,500.64 × 87,439.89
  4. Step 4: Simplify right side
    159,060.54x = 19,193,111,816.53
  5. Step 5: Solve for x
    x = 19,193,111,816.53/159,060.54
  6. Step 6: Final answer
    x = 120,665.45

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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.