Home / 121,962.52-168,288.06-71,671.24

Finding the Fourth Proportional to 121,962.52, 168,288.06 and 71,671.24

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Solution

The fourth proportional to 121,962.52, 168,288.06 and 71,671.24 is: 98,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,962.52 : 168,288.06 = 71,671.24 : x
  2. Step 2: Convert to fraction form
    121,962.52/168,288.06 = 71,671.24/x
  3. Step 3: Cross multiply
    121,962.52x = 168,288.06 × 71,671.24
  4. Step 4: Simplify right side
    121,962.52x = 12,061,413,937.39
  5. Step 5: Solve for x
    x = 12,061,413,937.39/121,962.52
  6. Step 6: Final answer
    x = 98,894.43

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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.