Home / 155,334.83-214,363.31-86,425.29

Finding the Fourth Proportional to 155,334.83, 214,363.31 and 86,425.29

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Solution

The fourth proportional to 155,334.83, 214,363.31 and 86,425.29 is: 119,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,334.83 : 214,363.31 = 86,425.29 : x
  2. Step 2: Convert to fraction form
    155,334.83/214,363.31 = 86,425.29/x
  3. Step 3: Cross multiply
    155,334.83x = 214,363.31 × 86,425.29
  4. Step 4: Simplify right side
    155,334.83x = 18,526,411,286.13
  5. Step 5: Solve for x
    x = 18,526,411,286.13/155,334.83
  6. Step 6: Final answer
    x = 119,267.59

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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.