Home / 189,006.72-283,544.88-78,207.36

Finding the Fourth Proportional to 189,006.72, 283,544.88 and 78,207.36

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Solution

The fourth proportional to 189,006.72, 283,544.88 and 78,207.36 is: 117,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,006.72 : 283,544.88 = 78,207.36 : x
  2. Step 2: Convert to fraction form
    189,006.72/283,544.88 = 78,207.36/x
  3. Step 3: Cross multiply
    189,006.72x = 283,544.88 × 78,207.36
  4. Step 4: Simplify right side
    189,006.72x = 22,175,296,506.32
  5. Step 5: Solve for x
    x = 22,175,296,506.32/189,006.72
  6. Step 6: Final answer
    x = 117,325.44

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1.5x scale

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.