Home / 106,942.40-160,219.20-87,113.60

Finding the Fourth Proportional to 106,942.40, 160,219.20 and 87,113.60

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Solution

The fourth proportional to 106,942.40, 160,219.20 and 87,113.60 is: 130,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,942.40 : 160,219.20 = 87,113.60 : x
  2. Step 2: Convert to fraction form
    106,942.40/160,219.20 = 87,113.60/x
  3. Step 3: Cross multiply
    106,942.40x = 160,219.20 × 87,113.60
  4. Step 4: Simplify right side
    106,942.40x = 13,957,271,301.12
  5. Step 5: Solve for x
    x = 13,957,271,301.12/106,942.40
  6. Step 6: Final answer
    x = 130,512.04

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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.