Home / 112,975.02-155,910.08-67,643.98

Finding the Fourth Proportional to 112,975.02, 155,910.08 and 67,643.98

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Solution

The fourth proportional to 112,975.02, 155,910.08 and 67,643.98 is: 93,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,975.02 : 155,910.08 = 67,643.98 : x
  2. Step 2: Convert to fraction form
    112,975.02/155,910.08 = 67,643.98/x
  3. Step 3: Cross multiply
    112,975.02x = 155,910.08 × 67,643.98
  4. Step 4: Simplify right side
    112,975.02x = 10,546,378,112.65
  5. Step 5: Solve for x
    x = 10,546,378,112.65/112,975.02
  6. Step 6: Final answer
    x = 93,351.42

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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.