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Finding the Fourth Proportional to 128,152.92, 192,270.50 and 61,597.88

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Solution

The fourth proportional to 128,152.92, 192,270.50 and 61,597.88 is: 92,416.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,152.92 : 192,270.50 = 61,597.88 : x
  2. Step 2: Convert to fraction form
    128,152.92/192,270.50 = 61,597.88/x
  3. Step 3: Cross multiply
    128,152.92x = 192,270.50 × 61,597.88
  4. Step 4: Simplify right side
    128,152.92x = 11,843,455,186.54
  5. Step 5: Solve for x
    x = 11,843,455,186.54/128,152.92
  6. Step 6: Final answer
    x = 92,416.58

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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.