Home / 142,974.80-214,219.08-92,978.48

Finding the Fourth Proportional to 142,974.80, 214,219.08 and 92,978.48

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Solution

The fourth proportional to 142,974.80, 214,219.08 and 92,978.48 is: 139,309.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974.80 : 214,219.08 = 92,978.48 : x
  2. Step 2: Convert to fraction form
    142,974.80/214,219.08 = 92,978.48/x
  3. Step 3: Cross multiply
    142,974.80x = 214,219.08 × 92,978.48
  4. Step 4: Simplify right side
    142,974.80x = 19,917,764,445.40
  5. Step 5: Solve for x
    x = 19,917,764,445.40/142,974.80
  6. Step 6: Final answer
    x = 139,309.62

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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.