Home / 320,065.12-480,122.18-95,408.38

Finding the Fourth Proportional to 320,065.12, 480,122.18 and 95,408.38

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Solution

The fourth proportional to 320,065.12, 480,122.18 and 95,408.38 is: 143,119.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,065.12 : 480,122.18 = 95,408.38 : x
  2. Step 2: Convert to fraction form
    320,065.12/480,122.18 = 95,408.38/x
  3. Step 3: Cross multiply
    320,065.12x = 480,122.18 × 95,408.38
  4. Step 4: Simplify right side
    320,065.12x = 45,807,679,395.87
  5. Step 5: Solve for x
    x = 45,807,679,395.87/320,065.12
  6. Step 6: Final answer
    x = 143,119.87

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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.