Home / 98,494.24-148,406.20-81,348.16

Finding the Fourth Proportional to 98,494.24, 148,406.20 and 81,348.16

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Solution

The fourth proportional to 98,494.24, 148,406.20 and 81,348.16 is: 122,571.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,494.24 : 148,406.20 = 81,348.16 : x
  2. Step 2: Convert to fraction form
    98,494.24/148,406.20 = 81,348.16/x
  3. Step 3: Cross multiply
    98,494.24x = 148,406.20 × 81,348.16
  4. Step 4: Simplify right side
    98,494.24x = 12,072,571,302.59
  5. Step 5: Solve for x
    x = 12,072,571,302.59/98,494.24
  6. Step 6: Final answer
    x = 122,571.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.