Home / 211,117.68-291,331.56-115,605.90

Finding the Fourth Proportional to 211,117.68, 291,331.56 and 115,605.90

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Solution

The fourth proportional to 211,117.68, 291,331.56 and 115,605.90 is: 159,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,117.68 : 291,331.56 = 115,605.90 : x
  2. Step 2: Convert to fraction form
    211,117.68/291,331.56 = 115,605.90/x
  3. Step 3: Cross multiply
    211,117.68x = 291,331.56 × 115,605.90
  4. Step 4: Simplify right side
    211,117.68x = 33,679,647,192.20
  5. Step 5: Solve for x
    x = 33,679,647,192.20/211,117.68
  6. Step 6: Final answer
    x = 159,530.21

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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.