Home / 128,182.14-192,279.60-53,294.40

Finding the Fourth Proportional to 128,182.14, 192,279.60 and 53,294.40

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Solution

The fourth proportional to 128,182.14, 192,279.60 and 53,294.40 is: 79,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,182.14 : 192,279.60 = 53,294.40 : x
  2. Step 2: Convert to fraction form
    128,182.14/192,279.60 = 53,294.40/x
  3. Step 3: Cross multiply
    128,182.14x = 192,279.60 × 53,294.40
  4. Step 4: Simplify right side
    128,182.14x = 10,247,425,914.24
  5. Step 5: Solve for x
    x = 10,247,425,914.24/128,182.14
  6. Step 6: Final answer
    x = 79,944.26

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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.