Home / 115,338.96-159,173.64-86,995.44

Finding the Fourth Proportional to 115,338.96, 159,173.64 and 86,995.44

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Solution

The fourth proportional to 115,338.96, 159,173.64 and 86,995.44 is: 120,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,338.96 : 159,173.64 = 86,995.44 : x
  2. Step 2: Convert to fraction form
    115,338.96/159,173.64 = 86,995.44/x
  3. Step 3: Cross multiply
    115,338.96x = 159,173.64 × 86,995.44
  4. Step 4: Simplify right side
    115,338.96x = 13,847,380,848.20
  5. Step 5: Solve for x
    x = 13,847,380,848.20/115,338.96
  6. Step 6: Final answer
    x = 120,058.14

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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.