Home / 70,730.20-106,095.30-66,064.60

Finding the Fourth Proportional to 70,730.20, 106,095.30 and 66,064.60

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Solution

The fourth proportional to 70,730.20, 106,095.30 and 66,064.60 is: 99,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,730.20 : 106,095.30 = 66,064.60 : x
  2. Step 2: Convert to fraction form
    70,730.20/106,095.30 = 66,064.60/x
  3. Step 3: Cross multiply
    70,730.20x = 106,095.30 × 66,064.60
  4. Step 4: Simplify right side
    70,730.20x = 7,009,143,556.38
  5. Step 5: Solve for x
    x = 7,009,143,556.38/70,730.20
  6. Step 6: Final answer
    x = 99,096.90

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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.