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Finding the Fourth Proportional to 122,302.40, 183,234.90 and 103,494.20

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Solution

The fourth proportional to 122,302.40, 183,234.90 and 103,494.20 is: 155,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,302.40 : 183,234.90 = 103,494.20 : x
  2. Step 2: Convert to fraction form
    122,302.40/183,234.90 = 103,494.20/x
  3. Step 3: Cross multiply
    122,302.40x = 183,234.90 × 103,494.20
  4. Step 4: Simplify right side
    122,302.40x = 18,963,749,387.58
  5. Step 5: Solve for x
    x = 18,963,749,387.58/122,302.40
  6. Step 6: Final answer
    x = 155,056.23

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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.