Home / 189,136.40-283,330.20-122,622.80

Finding the Fourth Proportional to 189,136.40, 283,330.20 and 122,622.80

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Solution

The fourth proportional to 189,136.40, 283,330.20 and 122,622.80 is: 183,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,136.40 : 283,330.20 = 122,622.80 : x
  2. Step 2: Convert to fraction form
    189,136.40/283,330.20 = 122,622.80/x
  3. Step 3: Cross multiply
    189,136.40x = 283,330.20 × 122,622.80
  4. Step 4: Simplify right side
    189,136.40x = 34,742,742,448.56
  5. Step 5: Solve for x
    x = 34,742,742,448.56/189,136.40
  6. Step 6: Final answer
    x = 183,691.47

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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.