Home / 211,068.56-291,247.53-120,419.30

Finding the Fourth Proportional to 211,068.56, 291,247.53 and 120,419.30

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Solution

The fourth proportional to 211,068.56, 291,247.53 and 120,419.30 is: 166,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,068.56 : 291,247.53 = 120,419.30 : x
  2. Step 2: Convert to fraction form
    211,068.56/291,247.53 = 120,419.30/x
  3. Step 3: Cross multiply
    211,068.56x = 291,247.53 × 120,419.30
  4. Step 4: Simplify right side
    211,068.56x = 35,071,823,689.33
  5. Step 5: Solve for x
    x = 35,071,823,689.33/211,068.56
  6. Step 6: Final answer
    x = 166,163.18

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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.