Home / 120,355.66-166,077.40-66,627.22

Finding the Fourth Proportional to 120,355.66, 166,077.40 and 66,627.22

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Solution

The fourth proportional to 120,355.66, 166,077.40 and 66,627.22 is: 91,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,355.66 : 166,077.40 = 66,627.22 : x
  2. Step 2: Convert to fraction form
    120,355.66/166,077.40 = 66,627.22/x
  3. Step 3: Cross multiply
    120,355.66x = 166,077.40 × 66,627.22
  4. Step 4: Simplify right side
    120,355.66x = 11,065,275,466.83
  5. Step 5: Solve for x
    x = 11,065,275,466.83/120,355.66
  6. Step 6: Final answer
    x = 91,938.14

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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.