Home / 118,917.28-164,108.07-65,199.07

Finding the Fourth Proportional to 118,917.28, 164,108.07 and 65,199.07

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Solution

The fourth proportional to 118,917.28, 164,108.07 and 65,199.07 is: 89,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,917.28 : 164,108.07 = 65,199.07 : x
  2. Step 2: Convert to fraction form
    118,917.28/164,108.07 = 65,199.07/x
  3. Step 3: Cross multiply
    118,917.28x = 164,108.07 × 65,199.07
  4. Step 4: Simplify right side
    118,917.28x = 10,699,693,543.49
  5. Step 5: Solve for x
    x = 10,699,693,543.49/118,917.28
  6. Step 6: Final answer
    x = 89,975.94

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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.