Home / 145,976.40-219,022.20-57,214.80

Finding the Fourth Proportional to 145,976.40, 219,022.20 and 57,214.80

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Solution

The fourth proportional to 145,976.40, 219,022.20 and 57,214.80 is: 85,844.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,976.40 : 219,022.20 = 57,214.80 : x
  2. Step 2: Convert to fraction form
    145,976.40/219,022.20 = 57,214.80/x
  3. Step 3: Cross multiply
    145,976.40x = 219,022.20 × 57,214.80
  4. Step 4: Simplify right side
    145,976.40x = 12,531,311,368.56
  5. Step 5: Solve for x
    x = 12,531,311,368.56/145,976.40
  6. Step 6: Final answer
    x = 85,844.78

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1.5x scale

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.