Home / 189,851.55-261,992.27-103,810.82

Finding the Fourth Proportional to 189,851.55, 261,992.27 and 103,810.82

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Solution

The fourth proportional to 189,851.55, 261,992.27 and 103,810.82 is: 143,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,851.55 : 261,992.27 = 103,810.82 : x
  2. Step 2: Convert to fraction form
    189,851.55/261,992.27 = 103,810.82/x
  3. Step 3: Cross multiply
    189,851.55x = 261,992.27 × 103,810.82
  4. Step 4: Simplify right side
    189,851.55x = 27,197,631,331.93
  5. Step 5: Solve for x
    x = 27,197,631,331.93/189,851.55
  6. Step 6: Final answer
    x = 143,257.36

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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.