Home / 112,962.21-155,887.79-61,975.28

Finding the Fourth Proportional to 112,962.21, 155,887.79 and 61,975.28

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Solution

The fourth proportional to 112,962.21, 155,887.79 and 61,975.28 is: 85,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,962.21 : 155,887.79 = 61,975.28 : x
  2. Step 2: Convert to fraction form
    112,962.21/155,887.79 = 61,975.28/x
  3. Step 3: Cross multiply
    112,962.21x = 155,887.79 × 61,975.28
  4. Step 4: Simplify right side
    112,962.21x = 9,661,188,344.52
  5. Step 5: Solve for x
    x = 9,661,188,344.52/112,962.21
  6. Step 6: Final answer
    x = 85,525.84

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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.