Home / 145,465.20-218,190.60-45,635.04

Finding the Fourth Proportional to 145,465.20, 218,190.60 and 45,635.04

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Solution

The fourth proportional to 145,465.20, 218,190.60 and 45,635.04 is: 68,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,465.20 : 218,190.60 = 45,635.04 : x
  2. Step 2: Convert to fraction form
    145,465.20/218,190.60 = 45,635.04/x
  3. Step 3: Cross multiply
    145,465.20x = 218,190.60 × 45,635.04
  4. Step 4: Simplify right side
    145,465.20x = 9,957,136,758.62
  5. Step 5: Solve for x
    x = 9,957,136,758.62/145,465.20
  6. Step 6: Final answer
    x = 68,450.30

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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.