Home / 211,146.13-291,381.75-115,654.42

Finding the Fourth Proportional to 211,146.13, 291,381.75 and 115,654.42

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Solution

The fourth proportional to 211,146.13, 291,381.75 and 115,654.42 is: 159,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,146.13 : 291,381.75 = 115,654.42 : x
  2. Step 2: Convert to fraction form
    211,146.13/291,381.75 = 115,654.42/x
  3. Step 3: Cross multiply
    211,146.13x = 291,381.75 × 115,654.42
  4. Step 4: Simplify right side
    211,146.13x = 33,699,587,294.84
  5. Step 5: Solve for x
    x = 33,699,587,294.84/211,146.13
  6. Step 6: Final answer
    x = 159,603.15

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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.