Home / 143,132.40-214,698.60-68,288.40

Finding the Fourth Proportional to 143,132.40, 214,698.60 and 68,288.40

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Solution

The fourth proportional to 143,132.40, 214,698.60 and 68,288.40 is: 102,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.40 : 214,698.60 = 68,288.40 : x
  2. Step 2: Convert to fraction form
    143,132.40/214,698.60 = 68,288.40/x
  3. Step 3: Cross multiply
    143,132.40x = 214,698.60 × 68,288.40
  4. Step 4: Simplify right side
    143,132.40x = 14,661,423,876.24
  5. Step 5: Solve for x
    x = 14,661,423,876.24/143,132.40
  6. Step 6: Final answer
    x = 102,432.60

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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.