Home / 98,678.44-147,995.33-45,319.12

Finding the Fourth Proportional to 98,678.44, 147,995.33 and 45,319.12

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Solution

The fourth proportional to 98,678.44, 147,995.33 and 45,319.12 is: 67,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,678.44 : 147,995.33 = 45,319.12 : x
  2. Step 2: Convert to fraction form
    98,678.44/147,995.33 = 45,319.12/x
  3. Step 3: Cross multiply
    98,678.44x = 147,995.33 × 45,319.12
  4. Step 4: Simplify right side
    98,678.44x = 6,707,017,153.14
  5. Step 5: Solve for x
    x = 6,707,017,153.14/98,678.44
  6. Step 6: Final answer
    x = 67,968.42

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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.