Home / 149,077.02-205,720.35-81,094.08

Finding the Fourth Proportional to 149,077.02, 205,720.35 and 81,094.08

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Solution

The fourth proportional to 149,077.02, 205,720.35 and 81,094.08 is: 111,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,077.02 : 205,720.35 = 81,094.08 : x
  2. Step 2: Convert to fraction form
    149,077.02/205,720.35 = 81,094.08/x
  3. Step 3: Cross multiply
    149,077.02x = 205,720.35 × 81,094.08
  4. Step 4: Simplify right side
    149,077.02x = 16,682,702,520.53
  5. Step 5: Solve for x
    x = 16,682,702,520.53/149,077.02
  6. Step 6: Final answer
    x = 111,906.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.