Home / 199,328.12-299,114.25-79,442.58

Finding the Fourth Proportional to 199,328.12, 299,114.25 and 79,442.58

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Solution

The fourth proportional to 199,328.12, 299,114.25 and 79,442.58 is: 119,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,328.12 : 299,114.25 = 79,442.58 : x
  2. Step 2: Convert to fraction form
    199,328.12/299,114.25 = 79,442.58/x
  3. Step 3: Cross multiply
    199,328.12x = 299,114.25 × 79,442.58
  4. Step 4: Simplify right side
    199,328.12x = 23,762,408,164.14
  5. Step 5: Solve for x
    x = 23,762,408,164.14/199,328.12
  6. Step 6: Final answer
    x = 119,212.53

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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.