Home / 98,781.02-148,204.79-31,324.12

Finding the Fourth Proportional to 98,781.02, 148,204.79 and 31,324.12

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Solution

The fourth proportional to 98,781.02, 148,204.79 and 31,324.12 is: 46,996.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,781.02 : 148,204.79 = 31,324.12 : x
  2. Step 2: Convert to fraction form
    98,781.02/148,204.79 = 31,324.12/x
  3. Step 3: Cross multiply
    98,781.02x = 148,204.79 × 31,324.12
  4. Step 4: Simplify right side
    98,781.02x = 4,642,384,216.87
  5. Step 5: Solve for x
    x = 4,642,384,216.87/98,781.02
  6. Step 6: Final answer
    x = 46,996.72

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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.