Home / 88,979.20-133,541.70-86,063.20

Finding the Fourth Proportional to 88,979.20, 133,541.70 and 86,063.20

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Solution

The fourth proportional to 88,979.20, 133,541.70 and 86,063.20 is: 129,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,979.20 : 133,541.70 = 86,063.20 : x
  2. Step 2: Convert to fraction form
    88,979.20/133,541.70 = 86,063.20/x
  3. Step 3: Cross multiply
    88,979.20x = 133,541.70 × 86,063.20
  4. Step 4: Simplify right side
    88,979.20x = 11,493,026,035.44
  5. Step 5: Solve for x
    x = 11,493,026,035.44/88,979.20
  6. Step 6: Final answer
    x = 129,165.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.