Home / 128,150.28-192,202.74-34,663.32

Finding the Fourth Proportional to 128,150.28, 192,202.74 and 34,663.32

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Solution

The fourth proportional to 128,150.28, 192,202.74 and 34,663.32 is: 51,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,150.28 : 192,202.74 = 34,663.32 : x
  2. Step 2: Convert to fraction form
    128,150.28/192,202.74 = 34,663.32/x
  3. Step 3: Cross multiply
    128,150.28x = 192,202.74 × 34,663.32
  4. Step 4: Simplify right side
    128,150.28x = 6,662,385,081.50
  5. Step 5: Solve for x
    x = 6,662,385,081.50/128,150.28
  6. Step 6: Final answer
    x = 51,988.85

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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.