Home / 128,532.34-192,761.49-44,289.10

Finding the Fourth Proportional to 128,532.34, 192,761.49 and 44,289.10

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Solution

The fourth proportional to 128,532.34, 192,761.49 and 44,289.10 is: 66,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,532.34 : 192,761.49 = 44,289.10 : x
  2. Step 2: Convert to fraction form
    128,532.34/192,761.49 = 44,289.10/x
  3. Step 3: Cross multiply
    128,532.34x = 192,761.49 × 44,289.10
  4. Step 4: Simplify right side
    128,532.34x = 8,537,232,906.76
  5. Step 5: Solve for x
    x = 8,537,232,906.76/128,532.34
  6. Step 6: Final answer
    x = 66,420.89

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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.