Home / 122,221.27-183,612.59-86,280.37

Finding the Fourth Proportional to 122,221.27, 183,612.59 and 86,280.37

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Solution

The fourth proportional to 122,221.27, 183,612.59 and 86,280.37 is: 129,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,221.27 : 183,612.59 = 86,280.37 : x
  2. Step 2: Convert to fraction form
    122,221.27/183,612.59 = 86,280.37/x
  3. Step 3: Cross multiply
    122,221.27x = 183,612.59 × 86,280.37
  4. Step 4: Simplify right side
    122,221.27x = 15,842,162,201.86
  5. Step 5: Solve for x
    x = 15,842,162,201.86/122,221.27
  6. Step 6: Final answer
    x = 129,618.70

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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.