Home / 112,415.20-168,687.60-42,344.80

Finding the Fourth Proportional to 112,415.20, 168,687.60 and 42,344.80

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Solution

The fourth proportional to 112,415.20, 168,687.60 and 42,344.80 is: 63,541.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.20 : 168,687.60 = 42,344.80 : x
  2. Step 2: Convert to fraction form
    112,415.20/168,687.60 = 42,344.80/x
  3. Step 3: Cross multiply
    112,415.20x = 168,687.60 × 42,344.80
  4. Step 4: Simplify right side
    112,415.20x = 7,143,042,684.48
  5. Step 5: Solve for x
    x = 7,143,042,684.48/112,415.20
  6. Step 6: Final answer
    x = 63,541.61

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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.