Home / 158,761.63-219,093.87-87,148.31

Finding the Fourth Proportional to 158,761.63, 219,093.87 and 87,148.31

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Solution

The fourth proportional to 158,761.63, 219,093.87 and 87,148.31 is: 120,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,761.63 : 219,093.87 = 87,148.31 : x
  2. Step 2: Convert to fraction form
    158,761.63/219,093.87 = 87,148.31/x
  3. Step 3: Cross multiply
    158,761.63x = 219,093.87 × 87,148.31
  4. Step 4: Simplify right side
    158,761.63x = 19,093,660,501.86
  5. Step 5: Solve for x
    x = 19,093,660,501.86/158,761.63
  6. Step 6: Final answer
    x = 120,266.22

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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.