Home / 105,470.48-158,147.40-80,179.04

Finding the Fourth Proportional to 105,470.48, 158,147.40 and 80,179.04

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Solution

The fourth proportional to 105,470.48, 158,147.40 and 80,179.04 is: 120,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,470.48 : 158,147.40 = 80,179.04 : x
  2. Step 2: Convert to fraction form
    105,470.48/158,147.40 = 80,179.04/x
  3. Step 3: Cross multiply
    105,470.48x = 158,147.40 × 80,179.04
  4. Step 4: Simplify right side
    105,470.48x = 12,680,106,710.50
  5. Step 5: Solve for x
    x = 12,680,106,710.50/105,470.48
  6. Step 6: Final answer
    x = 120,224.22

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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.