Home / 211,142.13-291,376.22-115,650.42

Finding the Fourth Proportional to 211,142.13, 291,376.22 and 115,650.42

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Solution

The fourth proportional to 211,142.13, 291,376.22 and 115,650.42 is: 159,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,142.13 : 291,376.22 = 115,650.42 : x
  2. Step 2: Convert to fraction form
    211,142.13/291,376.22 = 115,650.42/x
  3. Step 3: Cross multiply
    211,142.13x = 291,376.22 × 115,650.42
  4. Step 4: Simplify right side
    211,142.13x = 33,697,781,642.76
  5. Step 5: Solve for x
    x = 33,697,781,642.76/211,142.13
  6. Step 6: Final answer
    x = 159,597.62

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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.