Home / 115,268.08-159,074.40-64,966

Finding the Fourth Proportional to 115,268.08, 159,074.40 and 64,966

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Solution

The fourth proportional to 115,268.08, 159,074.40 and 64,966 is: 89,655.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,268.08 : 159,074.40 = 64,966 : x
  2. Step 2: Convert to fraction form
    115,268.08/159,074.40 = 64,966/x
  3. Step 3: Cross multiply
    115,268.08x = 159,074.40 × 64,966
  4. Step 4: Simplify right side
    115,268.08x = 10,334,427,470.40
  5. Step 5: Solve for x
    x = 10,334,427,470.40/115,268.08
  6. Step 6: Final answer
    x = 89,655.59

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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.