Home / 211,386.12-291,706.48-115,889.52

Finding the Fourth Proportional to 211,386.12, 291,706.48 and 115,889.52

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Solution

The fourth proportional to 211,386.12, 291,706.48 and 115,889.52 is: 159,924.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,386.12 : 291,706.48 = 115,889.52 : x
  2. Step 2: Convert to fraction form
    211,386.12/291,706.48 = 115,889.52/x
  3. Step 3: Cross multiply
    211,386.12x = 291,706.48 × 115,889.52
  4. Step 4: Simplify right side
    211,386.12x = 33,805,723,948.09
  5. Step 5: Solve for x
    x = 33,805,723,948.09/211,386.12
  6. Step 6: Final answer
    x = 159,924.05

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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.