Home / 115,268.27-159,071.05-64,284.29

Finding the Fourth Proportional to 115,268.27, 159,071.05 and 64,284.29

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Solution

The fourth proportional to 115,268.27, 159,071.05 and 64,284.29 is: 88,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,268.27 : 159,071.05 = 64,284.29 : x
  2. Step 2: Convert to fraction form
    115,268.27/159,071.05 = 64,284.29/x
  3. Step 3: Cross multiply
    115,268.27x = 159,071.05 × 64,284.29
  4. Step 4: Simplify right side
    115,268.27x = 10,225,769,508.80
  5. Step 5: Solve for x
    x = 10,225,769,508.80/115,268.27
  6. Step 6: Final answer
    x = 88,712.79

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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.