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Finding the Fourth Proportional to 122,575.98, 169,150.94 and 68,127.88

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Solution

The fourth proportional to 122,575.98, 169,150.94 and 68,127.88 is: 94,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,575.98 : 169,150.94 = 68,127.88 : x
  2. Step 2: Convert to fraction form
    122,575.98/169,150.94 = 68,127.88/x
  3. Step 3: Cross multiply
    122,575.98x = 169,150.94 × 68,127.88
  4. Step 4: Simplify right side
    122,575.98x = 11,523,895,068.49
  5. Step 5: Solve for x
    x = 11,523,895,068.49/122,575.98
  6. Step 6: Final answer
    x = 94,014.30

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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.