Home / 120,343.76-166,080.48-66,631.04

Finding the Fourth Proportional to 120,343.76, 166,080.48 and 66,631.04

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Solution

The fourth proportional to 120,343.76, 166,080.48 and 66,631.04 is: 91,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,343.76 : 166,080.48 = 66,631.04 : x
  2. Step 2: Convert to fraction form
    120,343.76/166,080.48 = 66,631.04/x
  3. Step 3: Cross multiply
    120,343.76x = 166,080.48 × 66,631.04
  4. Step 4: Simplify right side
    120,343.76x = 11,066,115,106.10
  5. Step 5: Solve for x
    x = 11,066,115,106.10/120,343.76
  6. Step 6: Final answer
    x = 91,954.21

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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.