Home / 211,007.11-291,194.94-115,513.51

Finding the Fourth Proportional to 211,007.11, 291,194.94 and 115,513.51

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Solution

The fourth proportional to 211,007.11, 291,194.94 and 115,513.51 is: 159,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,007.11 : 291,194.94 = 115,513.51 : x
  2. Step 2: Convert to fraction form
    211,007.11/291,194.94 = 115,513.51/x
  3. Step 3: Cross multiply
    211,007.11x = 291,194.94 × 115,513.51
  4. Step 4: Simplify right side
    211,007.11x = 33,636,949,613.64
  5. Step 5: Solve for x
    x = 33,636,949,613.64/211,007.11
  6. Step 6: Final answer
    x = 159,411.45

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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.