Home / 128,533.76-192,752.96-44,270.40

Finding the Fourth Proportional to 128,533.76, 192,752.96 and 44,270.40

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Solution

The fourth proportional to 128,533.76, 192,752.96 and 44,270.40 is: 66,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,533.76 : 192,752.96 = 44,270.40 : x
  2. Step 2: Convert to fraction form
    128,533.76/192,752.96 = 44,270.40/x
  3. Step 3: Cross multiply
    128,533.76x = 192,752.96 × 44,270.40
  4. Step 4: Simplify right side
    128,533.76x = 8,533,250,640.38
  5. Step 5: Solve for x
    x = 8,533,250,640.38/128,533.76
  6. Step 6: Final answer
    x = 66,389.18

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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.