Home / 118,161.09-163,088.78-75,132.27

Finding the Fourth Proportional to 118,161.09, 163,088.78 and 75,132.27

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Solution

The fourth proportional to 118,161.09, 163,088.78 and 75,132.27 is: 103,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,161.09 : 163,088.78 = 75,132.27 : x
  2. Step 2: Convert to fraction form
    118,161.09/163,088.78 = 75,132.27/x
  3. Step 3: Cross multiply
    118,161.09x = 163,088.78 × 75,132.27
  4. Step 4: Simplify right side
    118,161.09x = 12,253,229,877.27
  5. Step 5: Solve for x
    x = 12,253,229,877.27/118,161.09
  6. Step 6: Final answer
    x = 103,699.36

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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.