Home / 120,443.23-166,206.90-66,729.07

Finding the Fourth Proportional to 120,443.23, 166,206.90 and 66,729.07

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Solution

The fourth proportional to 120,443.23, 166,206.90 and 66,729.07 is: 92,083.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,443.23 : 166,206.90 = 66,729.07 : x
  2. Step 2: Convert to fraction form
    120,443.23/166,206.90 = 66,729.07/x
  3. Step 3: Cross multiply
    120,443.23x = 166,206.90 × 66,729.07
  4. Step 4: Simplify right side
    120,443.23x = 11,090,831,864.58
  5. Step 5: Solve for x
    x = 11,090,831,864.58/120,443.23
  6. Step 6: Final answer
    x = 92,083.48

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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.