Home / 151,091.84-208,507.19-83,115.78

Finding the Fourth Proportional to 151,091.84, 208,507.19 and 83,115.78

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Solution

The fourth proportional to 151,091.84, 208,507.19 and 83,115.78 is: 114,700.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,091.84 : 208,507.19 = 83,115.78 : x
  2. Step 2: Convert to fraction form
    151,091.84/208,507.19 = 83,115.78/x
  3. Step 3: Cross multiply
    151,091.84x = 208,507.19 × 83,115.78
  4. Step 4: Simplify right side
    151,091.84x = 17,330,237,316.88
  5. Step 5: Solve for x
    x = 17,330,237,316.88/151,091.84
  6. Step 6: Final answer
    x = 114,700.03

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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.