Home / 115,191.09-158,944.43-64,192.64

Finding the Fourth Proportional to 115,191.09, 158,944.43 and 64,192.64

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Solution

The fourth proportional to 115,191.09, 158,944.43 and 64,192.64 is: 88,575.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,191.09 : 158,944.43 = 64,192.64 : x
  2. Step 2: Convert to fraction form
    115,191.09/158,944.43 = 64,192.64/x
  3. Step 3: Cross multiply
    115,191.09x = 158,944.43 × 64,192.64
  4. Step 4: Simplify right side
    115,191.09x = 10,203,061,459.31
  5. Step 5: Solve for x
    x = 10,203,061,459.31/115,191.09
  6. Step 6: Final answer
    x = 88,575.09

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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.