Home / 115,475.31-159,321.12-67,067.91

Finding the Fourth Proportional to 115,475.31, 159,321.12 and 67,067.91

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Solution

The fourth proportional to 115,475.31, 159,321.12 and 67,067.91 is: 92,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,475.31 : 159,321.12 = 67,067.91 : x
  2. Step 2: Convert to fraction form
    115,475.31/159,321.12 = 67,067.91/x
  3. Step 3: Cross multiply
    115,475.31x = 159,321.12 × 67,067.91
  4. Step 4: Simplify right side
    115,475.31x = 10,685,334,537.26
  5. Step 5: Solve for x
    x = 10,685,334,537.26/115,475.31
  6. Step 6: Final answer
    x = 92,533.50

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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.