Home / 112,984.80-169,520.40-111,213.60

Finding the Fourth Proportional to 112,984.80, 169,520.40 and 111,213.60

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Solution

The fourth proportional to 112,984.80, 169,520.40 and 111,213.60 is: 166,862.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,984.80 : 169,520.40 = 111,213.60 : x
  2. Step 2: Convert to fraction form
    112,984.80/169,520.40 = 111,213.60/x
  3. Step 3: Cross multiply
    112,984.80x = 169,520.40 × 111,213.60
  4. Step 4: Simplify right side
    112,984.80x = 18,852,973,957.44
  5. Step 5: Solve for x
    x = 18,852,973,957.44/112,984.80
  6. Step 6: Final answer
    x = 166,862.92

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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.