Home / 211,151.04-291,388.80-115,657.92

Finding the Fourth Proportional to 211,151.04, 291,388.80 and 115,657.92

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Solution

The fourth proportional to 211,151.04, 291,388.80 and 115,657.92 is: 159,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,151.04 : 291,388.80 = 115,657.92 : x
  2. Step 2: Convert to fraction form
    211,151.04/291,388.80 = 115,657.92/x
  3. Step 3: Cross multiply
    211,151.04x = 291,388.80 × 115,657.92
  4. Step 4: Simplify right side
    211,151.04x = 33,701,422,519.30
  5. Step 5: Solve for x
    x = 33,701,422,519.30/211,151.04
  6. Step 6: Final answer
    x = 159,608.13

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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.