Home / 142,972.80-214,216.08-92,976.48

Finding the Fourth Proportional to 142,972.80, 214,216.08 and 92,976.48

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Solution

The fourth proportional to 142,972.80, 214,216.08 and 92,976.48 is: 139,306.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,972.80 : 214,216.08 = 92,976.48 : x
  2. Step 2: Convert to fraction form
    142,972.80/214,216.08 = 92,976.48/x
  3. Step 3: Cross multiply
    142,972.80x = 214,216.08 × 92,976.48
  4. Step 4: Simplify right side
    142,972.80x = 19,917,057,077.80
  5. Step 5: Solve for x
    x = 19,917,057,077.80/142,972.80
  6. Step 6: Final answer
    x = 139,306.62

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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.