Home / 117,212.04-175,881.24-77,787.72

Finding the Fourth Proportional to 117,212.04, 175,881.24 and 77,787.72

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Solution

The fourth proportional to 117,212.04, 175,881.24 and 77,787.72 is: 116,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212.04 : 175,881.24 = 77,787.72 : x
  2. Step 2: Convert to fraction form
    117,212.04/175,881.24 = 77,787.72/x
  3. Step 3: Cross multiply
    117,212.04x = 175,881.24 × 77,787.72
  4. Step 4: Simplify right side
    117,212.04x = 13,681,400,650.37
  5. Step 5: Solve for x
    x = 13,681,400,650.37/117,212.04
  6. Step 6: Final answer
    x = 116,723.51

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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.