Home / 120,359.66-166,082.92-66,631.22

Finding the Fourth Proportional to 120,359.66, 166,082.92 and 66,631.22

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Solution

The fourth proportional to 120,359.66, 166,082.92 and 66,631.22 is: 91,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,359.66 : 166,082.92 = 66,631.22 : x
  2. Step 2: Convert to fraction form
    120,359.66/166,082.92 = 66,631.22/x
  3. Step 3: Cross multiply
    120,359.66x = 166,082.92 × 66,631.22
  4. Step 4: Simplify right side
    120,359.66x = 11,066,307,580.76
  5. Step 5: Solve for x
    x = 11,066,307,580.76/120,359.66
  6. Step 6: Final answer
    x = 91,943.66

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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.