Home / 111,823.80-167,735.70-90,828.60

Finding the Fourth Proportional to 111,823.80, 167,735.70 and 90,828.60

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Solution

The fourth proportional to 111,823.80, 167,735.70 and 90,828.60 is: 136,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,823.80 : 167,735.70 = 90,828.60 : x
  2. Step 2: Convert to fraction form
    111,823.80/167,735.70 = 90,828.60/x
  3. Step 3: Cross multiply
    111,823.80x = 167,735.70 × 90,828.60
  4. Step 4: Simplify right side
    111,823.80x = 15,235,198,801.02
  5. Step 5: Solve for x
    x = 15,235,198,801.02/111,823.80
  6. Step 6: Final answer
    x = 136,242.90

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1.5x scale

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.