Home / 115,983.06-160,133.73-89,077.49

Finding the Fourth Proportional to 115,983.06, 160,133.73 and 89,077.49

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Solution

The fourth proportional to 115,983.06, 160,133.73 and 89,077.49 is: 122,986.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,983.06 : 160,133.73 = 89,077.49 : x
  2. Step 2: Convert to fraction form
    115,983.06/160,133.73 = 89,077.49/x
  3. Step 3: Cross multiply
    115,983.06x = 160,133.73 × 89,077.49
  4. Step 4: Simplify right side
    115,983.06x = 14,264,310,198.53
  5. Step 5: Solve for x
    x = 14,264,310,198.53/115,983.06
  6. Step 6: Final answer
    x = 122,986.16

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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.