Home / 115,983.86-160,052.37-65,683.22

Finding the Fourth Proportional to 115,983.86, 160,052.37 and 65,683.22

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Solution

The fourth proportional to 115,983.86, 160,052.37 and 65,683.22 is: 90,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,983.86 : 160,052.37 = 65,683.22 : x
  2. Step 2: Convert to fraction form
    115,983.86/160,052.37 = 65,683.22/x
  3. Step 3: Cross multiply
    115,983.86x = 160,052.37 × 65,683.22
  4. Step 4: Simplify right side
    115,983.86x = 10,512,755,030.23
  5. Step 5: Solve for x
    x = 10,512,755,030.23/115,983.86
  6. Step 6: Final answer
    x = 90,639.81

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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.