Home / 127,605.34-191,408.08-57,402.64

Finding the Fourth Proportional to 127,605.34, 191,408.08 and 57,402.64

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Solution

The fourth proportional to 127,605.34, 191,408.08 and 57,402.64 is: 86,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,605.34 : 191,408.08 = 57,402.64 : x
  2. Step 2: Convert to fraction form
    127,605.34/191,408.08 = 57,402.64/x
  3. Step 3: Cross multiply
    127,605.34x = 191,408.08 × 57,402.64
  4. Step 4: Simplify right side
    127,605.34x = 10,987,329,109.33
  5. Step 5: Solve for x
    x = 10,987,329,109.33/127,605.34
  6. Step 6: Final answer
    x = 86,103.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.