Home / 120,875.43-166,811.07-66,427.19

Finding the Fourth Proportional to 120,875.43, 166,811.07 and 66,427.19

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Solution

The fourth proportional to 120,875.43, 166,811.07 and 66,427.19 is: 91,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,875.43 : 166,811.07 = 66,427.19 : x
  2. Step 2: Convert to fraction form
    120,875.43/166,811.07 = 66,427.19/x
  3. Step 3: Cross multiply
    120,875.43x = 166,811.07 × 66,427.19
  4. Step 4: Simplify right side
    120,875.43x = 11,080,789,806.94
  5. Step 5: Solve for x
    x = 11,080,789,806.94/120,875.43
  6. Step 6: Final answer
    x = 91,671.15

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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.