Home / 211,081.83-291,292.43-115,587.69

Finding the Fourth Proportional to 211,081.83, 291,292.43 and 115,587.69

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Solution

The fourth proportional to 211,081.83, 291,292.43 and 115,587.69 is: 159,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,081.83 : 291,292.43 = 115,587.69 : x
  2. Step 2: Convert to fraction form
    211,081.83/291,292.43 = 115,587.69/x
  3. Step 3: Cross multiply
    211,081.83x = 291,292.43 × 115,587.69
  4. Step 4: Simplify right side
    211,081.83x = 33,669,819,098.19
  5. Step 5: Solve for x
    x = 33,669,819,098.19/211,081.83
  6. Step 6: Final answer
    x = 159,510.74

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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.