Home / 211,127.34-291,355.71-115,634.28

Finding the Fourth Proportional to 211,127.34, 291,355.71 and 115,634.28

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Solution

The fourth proportional to 211,127.34, 291,355.71 and 115,634.28 is: 159,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,127.34 : 291,355.71 = 115,634.28 : x
  2. Step 2: Convert to fraction form
    211,127.34/291,355.71 = 115,634.28/x
  3. Step 3: Cross multiply
    211,127.34x = 291,355.71 × 115,634.28
  4. Step 4: Simplify right side
    211,127.34x = 33,690,707,749.74
  5. Step 5: Solve for x
    x = 33,690,707,749.74/211,127.34
  6. Step 6: Final answer
    x = 159,575.30

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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.