Home / 158,717.86-219,029.99-87,099.07

Finding the Fourth Proportional to 158,717.86, 219,029.99 and 87,099.07

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Solution

The fourth proportional to 158,717.86, 219,029.99 and 87,099.07 is: 120,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,717.86 : 219,029.99 = 87,099.07 : x
  2. Step 2: Convert to fraction form
    158,717.86/219,029.99 = 87,099.07/x
  3. Step 3: Cross multiply
    158,717.86x = 219,029.99 × 87,099.07
  4. Step 4: Simplify right side
    158,717.86x = 19,077,308,431.11
  5. Step 5: Solve for x
    x = 19,077,308,431.11/158,717.86
  6. Step 6: Final answer
    x = 120,196.36

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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.