Home / 128,276.48-192,414.80-34,782.24

Finding the Fourth Proportional to 128,276.48, 192,414.80 and 34,782.24

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Solution

The fourth proportional to 128,276.48, 192,414.80 and 34,782.24 is: 52,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,276.48 : 192,414.80 = 34,782.24 : x
  2. Step 2: Convert to fraction form
    128,276.48/192,414.80 = 34,782.24/x
  3. Step 3: Cross multiply
    128,276.48x = 192,414.80 × 34,782.24
  4. Step 4: Simplify right side
    128,276.48x = 6,692,617,753.15
  5. Step 5: Solve for x
    x = 6,692,617,753.15/128,276.48
  6. Step 6: Final answer
    x = 52,173.38

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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.