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Finding the Fourth Proportional to 122,573.80, 183,860.70 and 109,354.60

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Solution

The fourth proportional to 122,573.80, 183,860.70 and 109,354.60 is: 164,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,573.80 : 183,860.70 = 109,354.60 : x
  2. Step 2: Convert to fraction form
    122,573.80/183,860.70 = 109,354.60/x
  3. Step 3: Cross multiply
    122,573.80x = 183,860.70 × 109,354.60
  4. Step 4: Simplify right side
    122,573.80x = 20,106,013,304.22
  5. Step 5: Solve for x
    x = 20,106,013,304.22/122,573.80
  6. Step 6: Final answer
    x = 164,031.90

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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.