Home / 211,152.65-291,390.77-115,660.94

Finding the Fourth Proportional to 211,152.65, 291,390.77 and 115,660.94

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Solution

The fourth proportional to 211,152.65, 291,390.77 and 115,660.94 is: 159,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,152.65 : 291,390.77 = 115,660.94 : x
  2. Step 2: Convert to fraction form
    211,152.65/291,390.77 = 115,660.94/x
  3. Step 3: Cross multiply
    211,152.65x = 291,390.77 × 115,660.94
  4. Step 4: Simplify right side
    211,152.65x = 33,702,529,787.22
  5. Step 5: Solve for x
    x = 33,702,529,787.22/211,152.65
  6. Step 6: Final answer
    x = 159,612.16

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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.