Home / 403,416.02-605,189.72-119,135.34

Finding the Fourth Proportional to 403,416.02, 605,189.72 and 119,135.34

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Solution

The fourth proportional to 403,416.02, 605,189.72 and 119,135.34 is: 178,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,416.02 : 605,189.72 = 119,135.34 : x
  2. Step 2: Convert to fraction form
    403,416.02/605,189.72 = 119,135.34/x
  3. Step 3: Cross multiply
    403,416.02x = 605,189.72 × 119,135.34
  4. Step 4: Simplify right side
    403,416.02x = 72,099,483,056.70
  5. Step 5: Solve for x
    x = 72,099,483,056.70/403,416.02
  6. Step 6: Final answer
    x = 178,722.41

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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.