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Finding the Fourth Proportional to 122,152.40, 168,580.54 and 67,717.88

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Solution

The fourth proportional to 122,152.40, 168,580.54 and 67,717.88 is: 93,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,152.40 : 168,580.54 = 67,717.88 : x
  2. Step 2: Convert to fraction form
    122,152.40/168,580.54 = 67,717.88/x
  3. Step 3: Cross multiply
    122,152.40x = 168,580.54 × 67,717.88
  4. Step 4: Simplify right side
    122,152.40x = 11,415,916,778.06
  5. Step 5: Solve for x
    x = 11,415,916,778.06/122,152.40
  6. Step 6: Final answer
    x = 93,456.34

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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.