Home / 135,029.95-186,345.09-74,604.49

Finding the Fourth Proportional to 135,029.95, 186,345.09 and 74,604.49

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Solution

The fourth proportional to 135,029.95, 186,345.09 and 74,604.49 is: 102,956.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,029.95 : 186,345.09 = 74,604.49 : x
  2. Step 2: Convert to fraction form
    135,029.95/186,345.09 = 74,604.49/x
  3. Step 3: Cross multiply
    135,029.95x = 186,345.09 × 74,604.49
  4. Step 4: Simplify right side
    135,029.95x = 13,902,180,403.45
  5. Step 5: Solve for x
    x = 13,902,180,403.45/135,029.95
  6. Step 6: Final answer
    x = 102,956.27

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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.