Home / 115,229.16-159,015.67-66,840.87

Finding the Fourth Proportional to 115,229.16, 159,015.67 and 66,840.87

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Solution

The fourth proportional to 115,229.16, 159,015.67 and 66,840.87 is: 92,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,229.16 : 159,015.67 = 66,840.87 : x
  2. Step 2: Convert to fraction form
    115,229.16/159,015.67 = 66,840.87/x
  3. Step 3: Cross multiply
    115,229.16x = 159,015.67 × 66,840.87
  4. Step 4: Simplify right side
    115,229.16x = 10,628,745,802.40
  5. Step 5: Solve for x
    x = 10,628,745,802.40/115,229.16
  6. Step 6: Final answer
    x = 92,240.07

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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.