Home / 122,161.52-168,665.28-76,291.22

Finding the Fourth Proportional to 122,161.52, 168,665.28 and 76,291.22

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Solution

The fourth proportional to 122,161.52, 168,665.28 and 76,291.22 is: 105,333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,161.52 : 168,665.28 = 76,291.22 : x
  2. Step 2: Convert to fraction form
    122,161.52/168,665.28 = 76,291.22/x
  3. Step 3: Cross multiply
    122,161.52x = 168,665.28 × 76,291.22
  4. Step 4: Simplify right side
    122,161.52x = 12,867,679,982.84
  5. Step 5: Solve for x
    x = 12,867,679,982.84/122,161.52
  6. Step 6: Final answer
    x = 105,333.33

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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.