Home / 211,081.11-291,295.35-115,586.16

Finding the Fourth Proportional to 211,081.11, 291,295.35 and 115,586.16

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Solution

The fourth proportional to 211,081.11, 291,295.35 and 115,586.16 is: 159,510.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,081.11 : 291,295.35 = 115,586.16 : x
  2. Step 2: Convert to fraction form
    211,081.11/291,295.35 = 115,586.16/x
  3. Step 3: Cross multiply
    211,081.11x = 291,295.35 × 115,586.16
  4. Step 4: Simplify right side
    211,081.11x = 33,669,710,932.36
  5. Step 5: Solve for x
    x = 33,669,710,932.36/211,081.11
  6. Step 6: Final answer
    x = 159,510.77

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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.