Home / 158,702.57-219,008.94-87,083.79

Finding the Fourth Proportional to 158,702.57, 219,008.94 and 87,083.79

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Solution

The fourth proportional to 158,702.57, 219,008.94 and 87,083.79 is: 120,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,702.57 : 219,008.94 = 87,083.79 : x
  2. Step 2: Convert to fraction form
    158,702.57/219,008.94 = 87,083.79/x
  3. Step 3: Cross multiply
    158,702.57x = 219,008.94 × 87,083.79
  4. Step 4: Simplify right side
    158,702.57x = 19,072,128,539.08
  5. Step 5: Solve for x
    x = 19,072,128,539.08/158,702.57
  6. Step 6: Final answer
    x = 120,175.30

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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.