Home / 121,542.08-167,801.97-83,364.35

Finding the Fourth Proportional to 121,542.08, 167,801.97 and 83,364.35

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Solution

The fourth proportional to 121,542.08, 167,801.97 and 83,364.35 is: 115,093.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,542.08 : 167,801.97 = 83,364.35 : x
  2. Step 2: Convert to fraction form
    121,542.08/167,801.97 = 83,364.35/x
  3. Step 3: Cross multiply
    121,542.08x = 167,801.97 × 83,364.35
  4. Step 4: Simplify right side
    121,542.08x = 13,988,701,318.76
  5. Step 5: Solve for x
    x = 13,988,701,318.76/121,542.08
  6. Step 6: Final answer
    x = 115,093.49

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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.