Home / 115,268.31-159,070.96-64,284.26

Finding the Fourth Proportional to 115,268.31, 159,070.96 and 64,284.26

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Solution

The fourth proportional to 115,268.31, 159,070.96 and 64,284.26 is: 88,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,268.31 : 159,070.96 = 64,284.26 : x
  2. Step 2: Convert to fraction form
    115,268.31/159,070.96 = 64,284.26/x
  3. Step 3: Cross multiply
    115,268.31x = 159,070.96 × 64,284.26
  4. Step 4: Simplify right side
    115,268.31x = 10,225,758,951.09
  5. Step 5: Solve for x
    x = 10,225,758,951.09/115,268.31
  6. Step 6: Final answer
    x = 88,712.66

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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.