Home / 149,253.89-205,620.06-103,853.79

Finding the Fourth Proportional to 149,253.89, 205,620.06 and 103,853.79

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Solution

The fourth proportional to 149,253.89, 205,620.06 and 103,853.79 is: 143,074.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,253.89 : 205,620.06 = 103,853.79 : x
  2. Step 2: Convert to fraction form
    149,253.89/205,620.06 = 103,853.79/x
  3. Step 3: Cross multiply
    149,253.89x = 205,620.06 × 103,853.79
  4. Step 4: Simplify right side
    149,253.89x = 21,354,423,045.08
  5. Step 5: Solve for x
    x = 21,354,423,045.08/149,253.89
  6. Step 6: Final answer
    x = 143,074.48

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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.