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Finding the Fourth Proportional to 151,090.70, 226,810.65 and 81,106.70

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Solution

The fourth proportional to 151,090.70, 226,810.65 and 81,106.70 is: 121,753.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,090.70 : 226,810.65 = 81,106.70 : x
  2. Step 2: Convert to fraction form
    151,090.70/226,810.65 = 81,106.70/x
  3. Step 3: Cross multiply
    151,090.70x = 226,810.65 × 81,106.70
  4. Step 4: Simplify right side
    151,090.70x = 18,395,863,346.36
  5. Step 5: Solve for x
    x = 18,395,863,346.36/151,090.70
  6. Step 6: Final answer
    x = 121,753.78

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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.