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Finding the Fourth Proportional to 122,043.40, 183,174.45 and 105,422.20

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Solution

The fourth proportional to 122,043.40, 183,174.45 and 105,422.20 is: 158,227.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,043.40 : 183,174.45 = 105,422.20 : x
  2. Step 2: Convert to fraction form
    122,043.40/183,174.45 = 105,422.20/x
  3. Step 3: Cross multiply
    122,043.40x = 183,174.45 × 105,422.20
  4. Step 4: Simplify right side
    122,043.40x = 19,310,653,502.79
  5. Step 5: Solve for x
    x = 19,310,653,502.79/122,043.40
  6. Step 6: Final answer
    x = 158,227.76

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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.