Home / 170,799.23-256,355.10-86,617.50

Finding the Fourth Proportional to 170,799.23, 256,355.10 and 86,617.50

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Solution

The fourth proportional to 170,799.23, 256,355.10 and 86,617.50 is: 130,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,799.23 : 256,355.10 = 86,617.50 : x
  2. Step 2: Convert to fraction form
    170,799.23/256,355.10 = 86,617.50/x
  3. Step 3: Cross multiply
    170,799.23x = 256,355.10 × 86,617.50
  4. Step 4: Simplify right side
    170,799.23x = 22,204,837,874.25
  5. Step 5: Solve for x
    x = 22,204,837,874.25/170,799.23
  6. Step 6: Final answer
    x = 130,005.49

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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.