Home / 228,099.20-342,116.40-70,343.60

Finding the Fourth Proportional to 228,099.20, 342,116.40 and 70,343.60

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Solution

The fourth proportional to 228,099.20, 342,116.40 and 70,343.60 is: 105,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,099.20 : 342,116.40 = 70,343.60 : x
  2. Step 2: Convert to fraction form
    228,099.20/342,116.40 = 70,343.60/x
  3. Step 3: Cross multiply
    228,099.20x = 342,116.40 × 70,343.60
  4. Step 4: Simplify right side
    228,099.20x = 24,065,699,195.04
  5. Step 5: Solve for x
    x = 24,065,699,195.04/228,099.20
  6. Step 6: Final answer
    x = 105,505.41

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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.