Home / 117,138.07-175,705.54-28,392.34

Finding the Fourth Proportional to 117,138.07, 175,705.54 and 28,392.34

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Solution

The fourth proportional to 117,138.07, 175,705.54 and 28,392.34 is: 42,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,138.07 : 175,705.54 = 28,392.34 : x
  2. Step 2: Convert to fraction form
    117,138.07/175,705.54 = 28,392.34/x
  3. Step 3: Cross multiply
    117,138.07x = 175,705.54 × 28,392.34
  4. Step 4: Simplify right side
    117,138.07x = 4,988,691,431.56
  5. Step 5: Solve for x
    x = 4,988,691,431.56/117,138.07
  6. Step 6: Final answer
    x = 42,588.13

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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.