Home / 117,138.06-175,705.47-28,392.30

Finding the Fourth Proportional to 117,138.06, 175,705.47 and 28,392.30

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Solution

The fourth proportional to 117,138.06, 175,705.47 and 28,392.30 is: 42,588.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,138.06 : 175,705.47 = 28,392.30 : x
  2. Step 2: Convert to fraction form
    117,138.06/175,705.47 = 28,392.30/x
  3. Step 3: Cross multiply
    117,138.06x = 175,705.47 × 28,392.30
  4. Step 4: Simplify right side
    117,138.06x = 4,988,682,415.88
  5. Step 5: Solve for x
    x = 4,988,682,415.88/117,138.06
  6. Step 6: Final answer
    x = 42,588.06

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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.