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Finding the Fourth Proportional to 128,230.40, 192,344.52 and 34,735.52

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Solution

The fourth proportional to 128,230.40, 192,344.52 and 34,735.52 is: 52,102.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,230.40 : 192,344.52 = 34,735.52 : x
  2. Step 2: Convert to fraction form
    128,230.40/192,344.52 = 34,735.52/x
  3. Step 3: Cross multiply
    128,230.40x = 192,344.52 × 34,735.52
  4. Step 4: Simplify right side
    128,230.40x = 6,681,186,921.35
  5. Step 5: Solve for x
    x = 6,681,186,921.35/128,230.40
  6. Step 6: Final answer
    x = 52,102.99

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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.