Home / 211,526.30-291,887.70-120,864.26

Finding the Fourth Proportional to 211,526.30, 291,887.70 and 120,864.26

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Solution

The fourth proportional to 211,526.30, 291,887.70 and 120,864.26 is: 166,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,526.30 : 291,887.70 = 120,864.26 : x
  2. Step 2: Convert to fraction form
    211,526.30/291,887.70 = 120,864.26/x
  3. Step 3: Cross multiply
    211,526.30x = 291,887.70 × 120,864.26
  4. Step 4: Simplify right side
    211,526.30x = 35,278,790,863.60
  5. Step 5: Solve for x
    x = 35,278,790,863.60/211,526.30
  6. Step 6: Final answer
    x = 166,782.05

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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.