Home / 122,225.28-183,618.62-86,284.38

Finding the Fourth Proportional to 122,225.28, 183,618.62 and 86,284.38

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Solution

The fourth proportional to 122,225.28, 183,618.62 and 86,284.38 is: 129,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,225.28 : 183,618.62 = 86,284.38 : x
  2. Step 2: Convert to fraction form
    122,225.28/183,618.62 = 86,284.38/x
  3. Step 3: Cross multiply
    122,225.28x = 183,618.62 × 86,284.38
  4. Step 4: Simplify right side
    122,225.28x = 15,843,418,783.16
  5. Step 5: Solve for x
    x = 15,843,418,783.16/122,225.28
  6. Step 6: Final answer
    x = 129,624.73

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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.