Home / 149,260.70-205,821.91-115,274.72

Finding the Fourth Proportional to 149,260.70, 205,821.91 and 115,274.72

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Solution

The fourth proportional to 149,260.70, 205,821.91 and 115,274.72 is: 158,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,260.70 : 205,821.91 = 115,274.72 : x
  2. Step 2: Convert to fraction form
    149,260.70/205,821.91 = 115,274.72/x
  3. Step 3: Cross multiply
    149,260.70x = 205,821.91 × 115,274.72
  4. Step 4: Simplify right side
    149,260.70x = 23,726,063,045.12
  5. Step 5: Solve for x
    x = 23,726,063,045.12/149,260.70
  6. Step 6: Final answer
    x = 158,957.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.