Home / 120,670.12-166,533.89-66,965.29

Finding the Fourth Proportional to 120,670.12, 166,533.89 and 66,965.29

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Solution

The fourth proportional to 120,670.12, 166,533.89 and 66,965.29 is: 92,417.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,670.12 : 166,533.89 = 66,965.29 : x
  2. Step 2: Convert to fraction form
    120,670.12/166,533.89 = 66,965.29/x
  3. Step 3: Cross multiply
    120,670.12x = 166,533.89 × 66,965.29
  4. Step 4: Simplify right side
    120,670.12x = 11,151,989,903.85
  5. Step 5: Solve for x
    x = 11,151,989,903.85/120,670.12
  6. Step 6: Final answer
    x = 92,417.16

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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.