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Finding the Fourth Proportional to 122,191.60, 183,287.40 and 43,313.80

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Solution

The fourth proportional to 122,191.60, 183,287.40 and 43,313.80 is: 64,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,191.60 : 183,287.40 = 43,313.80 : x
  2. Step 2: Convert to fraction form
    122,191.60/183,287.40 = 43,313.80/x
  3. Step 3: Cross multiply
    122,191.60x = 183,287.40 × 43,313.80
  4. Step 4: Simplify right side
    122,191.60x = 7,938,873,786.12
  5. Step 5: Solve for x
    x = 7,938,873,786.12/122,191.60
  6. Step 6: Final answer
    x = 64,970.70

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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.