Home / 120,921.84-166,864.08-67,203.36

Finding the Fourth Proportional to 120,921.84, 166,864.08 and 67,203.36

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Solution

The fourth proportional to 120,921.84, 166,864.08 and 67,203.36 is: 92,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,921.84 : 166,864.08 = 67,203.36 : x
  2. Step 2: Convert to fraction form
    120,921.84/166,864.08 = 67,203.36/x
  3. Step 3: Cross multiply
    120,921.84x = 166,864.08 × 67,203.36
  4. Step 4: Simplify right side
    120,921.84x = 11,213,826,839.31
  5. Step 5: Solve for x
    x = 11,213,826,839.31/120,921.84
  6. Step 6: Final answer
    x = 92,736.16

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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.