Home / 122,658.20-183,987.30-38,419.06

Finding the Fourth Proportional to 122,658.20, 183,987.30 and 38,419.06

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Solution

The fourth proportional to 122,658.20, 183,987.30 and 38,419.06 is: 57,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,658.20 : 183,987.30 = 38,419.06 : x
  2. Step 2: Convert to fraction form
    122,658.20/183,987.30 = 38,419.06/x
  3. Step 3: Cross multiply
    122,658.20x = 183,987.30 × 38,419.06
  4. Step 4: Simplify right side
    122,658.20x = 7,068,618,930.91
  5. Step 5: Solve for x
    x = 7,068,618,930.91/122,658.20
  6. Step 6: Final answer
    x = 57,628.59

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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.