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Finding the Fourth Proportional to 122,307.20, 183,460.80 and 109,476.80

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Solution

The fourth proportional to 122,307.20, 183,460.80 and 109,476.80 is: 164,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,307.20 : 183,460.80 = 109,476.80 : x
  2. Step 2: Convert to fraction form
    122,307.20/183,460.80 = 109,476.80/x
  3. Step 3: Cross multiply
    122,307.20x = 183,460.80 × 109,476.80
  4. Step 4: Simplify right side
    122,307.20x = 20,084,701,309.44
  5. Step 5: Solve for x
    x = 20,084,701,309.44/122,307.20
  6. Step 6: Final answer
    x = 164,215.20

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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.