Home / 133,090.70-199,636.05-91,100.30

Finding the Fourth Proportional to 133,090.70, 199,636.05 and 91,100.30

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Solution

The fourth proportional to 133,090.70, 199,636.05 and 91,100.30 is: 136,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,090.70 : 199,636.05 = 91,100.30 : x
  2. Step 2: Convert to fraction form
    133,090.70/199,636.05 = 91,100.30/x
  3. Step 3: Cross multiply
    133,090.70x = 199,636.05 × 91,100.30
  4. Step 4: Simplify right side
    133,090.70x = 18,186,904,045.82
  5. Step 5: Solve for x
    x = 18,186,904,045.82/133,090.70
  6. Step 6: Final answer
    x = 136,650.45

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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.