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Finding the Fourth Proportional to 120,735.42, 166,607.01 and 67,020.45

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Solution

The fourth proportional to 120,735.42, 166,607.01 and 67,020.45 is: 92,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,735.42 : 166,607.01 = 67,020.45 : x
  2. Step 2: Convert to fraction form
    120,735.42/166,607.01 = 67,020.45/x
  3. Step 3: Cross multiply
    120,735.42x = 166,607.01 × 67,020.45
  4. Step 4: Simplify right side
    120,735.42x = 11,166,076,783.35
  5. Step 5: Solve for x
    x = 11,166,076,783.35/120,735.42
  6. Step 6: Final answer
    x = 92,483.85

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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.