Home / 105,120.32-157,734.24-49,701.44

Finding the Fourth Proportional to 105,120.32, 157,734.24 and 49,701.44

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Solution

The fourth proportional to 105,120.32, 157,734.24 and 49,701.44 is: 74,577.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,120.32 : 157,734.24 = 49,701.44 : x
  2. Step 2: Convert to fraction form
    105,120.32/157,734.24 = 49,701.44/x
  3. Step 3: Cross multiply
    105,120.32x = 157,734.24 × 49,701.44
  4. Step 4: Simplify right side
    105,120.32x = 7,839,618,865.31
  5. Step 5: Solve for x
    x = 7,839,618,865.31/105,120.32
  6. Step 6: Final answer
    x = 74,577.58

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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.