Home / 120,812.08-166,694.16-73,064.40

Finding the Fourth Proportional to 120,812.08, 166,694.16 and 73,064.40

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Solution

The fourth proportional to 120,812.08, 166,694.16 and 73,064.40 is: 100,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,812.08 : 166,694.16 = 73,064.40 : x
  2. Step 2: Convert to fraction form
    120,812.08/166,694.16 = 73,064.40/x
  3. Step 3: Cross multiply
    120,812.08x = 166,694.16 × 73,064.40
  4. Step 4: Simplify right side
    120,812.08x = 12,179,408,783.90
  5. Step 5: Solve for x
    x = 12,179,408,783.90/120,812.08
  6. Step 6: Final answer
    x = 100,812.84

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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.