Home / 128,077.36-192,116.04-43,838.62

Finding the Fourth Proportional to 128,077.36, 192,116.04 and 43,838.62

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Solution

The fourth proportional to 128,077.36, 192,116.04 and 43,838.62 is: 65,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,077.36 : 192,116.04 = 43,838.62 : x
  2. Step 2: Convert to fraction form
    128,077.36/192,116.04 = 43,838.62/x
  3. Step 3: Cross multiply
    128,077.36x = 192,116.04 × 43,838.62
  4. Step 4: Simplify right side
    128,077.36x = 8,422,102,073.46
  5. Step 5: Solve for x
    x = 8,422,102,073.46/128,077.36
  6. Step 6: Final answer
    x = 65,757.93

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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.