Home / 211,407.03-291,739.59-115,913.50

Finding the Fourth Proportional to 211,407.03, 291,739.59 and 115,913.50

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Solution

The fourth proportional to 211,407.03, 291,739.59 and 115,913.50 is: 159,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,407.03 : 291,739.59 = 115,913.50 : x
  2. Step 2: Convert to fraction form
    211,407.03/291,739.59 = 115,913.50/x
  3. Step 3: Cross multiply
    211,407.03x = 291,739.59 × 115,913.50
  4. Step 4: Simplify right side
    211,407.03x = 33,816,556,236.12
  5. Step 5: Solve for x
    x = 33,816,556,236.12/211,407.03
  6. Step 6: Final answer
    x = 159,959.47

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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.