Home / 98,541.03-147,806.07-45,987.42

Finding the Fourth Proportional to 98,541.03, 147,806.07 and 45,987.42

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Solution

The fourth proportional to 98,541.03, 147,806.07 and 45,987.42 is: 68,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,541.03 : 147,806.07 = 45,987.42 : x
  2. Step 2: Convert to fraction form
    98,541.03/147,806.07 = 45,987.42/x
  3. Step 3: Cross multiply
    98,541.03x = 147,806.07 × 45,987.42
  4. Step 4: Simplify right side
    98,541.03x = 6,797,219,819.64
  5. Step 5: Solve for x
    x = 6,797,219,819.64/98,541.03
  6. Step 6: Final answer
    x = 68,978.57

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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.