Home / 115,238.79-159,039.98-69,928.25

Finding the Fourth Proportional to 115,238.79, 159,039.98 and 69,928.25

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Solution

The fourth proportional to 115,238.79, 159,039.98 and 69,928.25 is: 96,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,238.79 : 159,039.98 = 69,928.25 : x
  2. Step 2: Convert to fraction form
    115,238.79/159,039.98 = 69,928.25/x
  3. Step 3: Cross multiply
    115,238.79x = 159,039.98 × 69,928.25
  4. Step 4: Simplify right side
    115,238.79x = 11,121,386,336.59
  5. Step 5: Solve for x
    x = 11,121,386,336.59/115,238.79
  6. Step 6: Final answer
    x = 96,507.32

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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.