Home / 120,812.72-166,694.60-73,065.04

Finding the Fourth Proportional to 120,812.72, 166,694.60 and 73,065.04

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Solution

The fourth proportional to 120,812.72, 166,694.60 and 73,065.04 is: 100,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,812.72 : 166,694.60 = 73,065.04 : x
  2. Step 2: Convert to fraction form
    120,812.72/166,694.60 = 73,065.04/x
  3. Step 3: Cross multiply
    120,812.72x = 166,694.60 × 73,065.04
  4. Step 4: Simplify right side
    120,812.72x = 12,179,547,616.78
  5. Step 5: Solve for x
    x = 12,179,547,616.78/120,812.72
  6. Step 6: Final answer
    x = 100,813.45

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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.