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Finding the Fourth Proportional to 128,416.40, 192,576.72 and 44,152.72

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Solution

The fourth proportional to 128,416.40, 192,576.72 and 44,152.72 is: 66,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,416.40 : 192,576.72 = 44,152.72 : x
  2. Step 2: Convert to fraction form
    128,416.40/192,576.72 = 44,152.72/x
  3. Step 3: Cross multiply
    128,416.40x = 192,576.72 × 44,152.72
  4. Step 4: Simplify right side
    128,416.40x = 8,502,785,996.68
  5. Step 5: Solve for x
    x = 8,502,785,996.68/128,416.40
  6. Step 6: Final answer
    x = 66,212.62

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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.