Home / 153,981.20-230,856.60-83,939.60

Finding the Fourth Proportional to 153,981.20, 230,856.60 and 83,939.60

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Solution

The fourth proportional to 153,981.20, 230,856.60 and 83,939.60 is: 125,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,981.20 : 230,856.60 = 83,939.60 : x
  2. Step 2: Convert to fraction form
    153,981.20/230,856.60 = 83,939.60/x
  3. Step 3: Cross multiply
    153,981.20x = 230,856.60 × 83,939.60
  4. Step 4: Simplify right side
    153,981.20x = 19,378,010,661.36
  5. Step 5: Solve for x
    x = 19,378,010,661.36/153,981.20
  6. Step 6: Final answer
    x = 125,846.60

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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.