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Finding the Fourth Proportional to 122,157.52, 168,574.44 and 68,444.80

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Solution

The fourth proportional to 122,157.52, 168,574.44 and 68,444.80 is: 94,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,157.52 : 168,574.44 = 68,444.80 : x
  2. Step 2: Convert to fraction form
    122,157.52/168,574.44 = 68,444.80/x
  3. Step 3: Cross multiply
    122,157.52x = 168,574.44 × 68,444.80
  4. Step 4: Simplify right side
    122,157.52x = 11,538,043,830.91
  5. Step 5: Solve for x
    x = 11,538,043,830.91/122,157.52
  6. Step 6: Final answer
    x = 94,452.18

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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.