Home / 98,670.12-148,029.48-28,556.52

Finding the Fourth Proportional to 98,670.12, 148,029.48 and 28,556.52

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Solution

The fourth proportional to 98,670.12, 148,029.48 and 28,556.52 is: 42,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,670.12 : 148,029.48 = 28,556.52 : x
  2. Step 2: Convert to fraction form
    98,670.12/148,029.48 = 28,556.52/x
  3. Step 3: Cross multiply
    98,670.12x = 148,029.48 × 28,556.52
  4. Step 4: Simplify right side
    98,670.12x = 4,227,206,806.21
  5. Step 5: Solve for x
    x = 4,227,206,806.21/98,670.12
  6. Step 6: Final answer
    x = 42,841.81

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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.