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Finding the Fourth Proportional to 120,620.04, 166,463.10 and 69,642.08

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Solution

The fourth proportional to 120,620.04, 166,463.10 and 69,642.08 is: 96,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,620.04 : 166,463.10 = 69,642.08 : x
  2. Step 2: Convert to fraction form
    120,620.04/166,463.10 = 69,642.08/x
  3. Step 3: Cross multiply
    120,620.04x = 166,463.10 × 69,642.08
  4. Step 4: Simplify right side
    120,620.04x = 11,592,836,319.17
  5. Step 5: Solve for x
    x = 11,592,836,319.17/120,620.04
  6. Step 6: Final answer
    x = 96,110.37

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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.