Home / 115,927.52-159,980.64-68,182.88

Finding the Fourth Proportional to 115,927.52, 159,980.64 and 68,182.88

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Solution

The fourth proportional to 115,927.52, 159,980.64 and 68,182.88 is: 94,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,927.52 : 159,980.64 = 68,182.88 : x
  2. Step 2: Convert to fraction form
    115,927.52/159,980.64 = 68,182.88/x
  3. Step 3: Cross multiply
    115,927.52x = 159,980.64 × 68,182.88
  4. Step 4: Simplify right side
    115,927.52x = 10,907,940,779.44
  5. Step 5: Solve for x
    x = 10,907,940,779.44/115,927.52
  6. Step 6: Final answer
    x = 94,092.76

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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.