Home / 98,023.28-147,090.87-81,582.44

Finding the Fourth Proportional to 98,023.28, 147,090.87 and 81,582.44

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Solution

The fourth proportional to 98,023.28, 147,090.87 and 81,582.44 is: 122,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,023.28 : 147,090.87 = 81,582.44 : x
  2. Step 2: Convert to fraction form
    98,023.28/147,090.87 = 81,582.44/x
  3. Step 3: Cross multiply
    98,023.28x = 147,090.87 × 81,582.44
  4. Step 4: Simplify right side
    98,023.28x = 12,000,031,340.87
  5. Step 5: Solve for x
    x = 12,000,031,340.87/98,023.28
  6. Step 6: Final answer
    x = 122,420.22

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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.