Home / 98,679.69-147,997.20-45,320.37

Finding the Fourth Proportional to 98,679.69, 147,997.20 and 45,320.37

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Solution

The fourth proportional to 98,679.69, 147,997.20 and 45,320.37 is: 67,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,679.69 : 147,997.20 = 45,320.37 : x
  2. Step 2: Convert to fraction form
    98,679.69/147,997.20 = 45,320.37/x
  3. Step 3: Cross multiply
    98,679.69x = 147,997.20 × 45,320.37
  4. Step 4: Simplify right side
    98,679.69x = 6,707,287,862.96
  5. Step 5: Solve for x
    x = 6,707,287,862.96/98,679.69
  6. Step 6: Final answer
    x = 67,970.30

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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.