Home / 111,868.20-167,802.30-103,314.60

Finding the Fourth Proportional to 111,868.20, 167,802.30 and 103,314.60

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Solution

The fourth proportional to 111,868.20, 167,802.30 and 103,314.60 is: 154,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,868.20 : 167,802.30 = 103,314.60 : x
  2. Step 2: Convert to fraction form
    111,868.20/167,802.30 = 103,314.60/x
  3. Step 3: Cross multiply
    111,868.20x = 167,802.30 × 103,314.60
  4. Step 4: Simplify right side
    111,868.20x = 17,336,427,503.58
  5. Step 5: Solve for x
    x = 17,336,427,503.58/111,868.20
  6. Step 6: Final answer
    x = 154,971.90

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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.