Home / 123,647.11-185,484.30-39,387.67

Finding the Fourth Proportional to 123,647.11, 185,484.30 and 39,387.67

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Solution

The fourth proportional to 123,647.11, 185,484.30 and 39,387.67 is: 59,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,647.11 : 185,484.30 = 39,387.67 : x
  2. Step 2: Convert to fraction form
    123,647.11/185,484.30 = 39,387.67/x
  3. Step 3: Cross multiply
    123,647.11x = 185,484.30 × 39,387.67
  4. Step 4: Simplify right side
    123,647.11x = 7,305,794,398.58
  5. Step 5: Solve for x
    x = 7,305,794,398.58/123,647.11
  6. Step 6: Final answer
    x = 59,085.85

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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.