Home / 211,233.18-291,513.46-120,618.25

Finding the Fourth Proportional to 211,233.18, 291,513.46 and 120,618.25

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Solution

The fourth proportional to 211,233.18, 291,513.46 and 120,618.25 is: 166,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,233.18 : 291,513.46 = 120,618.25 : x
  2. Step 2: Convert to fraction form
    211,233.18/291,513.46 = 120,618.25/x
  3. Step 3: Cross multiply
    211,233.18x = 291,513.46 × 120,618.25
  4. Step 4: Simplify right side
    211,233.18x = 35,161,842,064.77
  5. Step 5: Solve for x
    x = 35,161,842,064.77/211,233.18
  6. Step 6: Final answer
    x = 166,459.85

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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.