Home / 211,070.08-291,276.54-115,578.64

Finding the Fourth Proportional to 211,070.08, 291,276.54 and 115,578.64

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Solution

The fourth proportional to 211,070.08, 291,276.54 and 115,578.64 is: 159,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,070.08 : 291,276.54 = 115,578.64 : x
  2. Step 2: Convert to fraction form
    211,070.08/291,276.54 = 115,578.64/x
  3. Step 3: Cross multiply
    211,070.08x = 291,276.54 × 115,578.64
  4. Step 4: Simplify right side
    211,070.08x = 33,665,346,357.11
  5. Step 5: Solve for x
    x = 33,665,346,357.11/211,070.08
  6. Step 6: Final answer
    x = 159,498.43

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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.