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Finding the Fourth Proportional to 133,222.70, 183,970.10 and 85,559.09

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Solution

The fourth proportional to 133,222.70, 183,970.10 and 85,559.09 is: 118,150.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,222.70 : 183,970.10 = 85,559.09 : x
  2. Step 2: Convert to fraction form
    133,222.70/183,970.10 = 85,559.09/x
  3. Step 3: Cross multiply
    133,222.70x = 183,970.10 × 85,559.09
  4. Step 4: Simplify right side
    133,222.70x = 15,740,313,276.30
  5. Step 5: Solve for x
    x = 15,740,313,276.30/133,222.70
  6. Step 6: Final answer
    x = 118,150.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.