Home / 108,184.40-149,408.52-82,782.80

Finding the Fourth Proportional to 108,184.40, 149,408.52 and 82,782.80

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Solution

The fourth proportional to 108,184.40, 149,408.52 and 82,782.80 is: 114,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,184.40 : 149,408.52 = 82,782.80 : x
  2. Step 2: Convert to fraction form
    108,184.40/149,408.52 = 82,782.80/x
  3. Step 3: Cross multiply
    108,184.40x = 149,408.52 × 82,782.80
  4. Step 4: Simplify right side
    108,184.40x = 12,368,455,629.46
  5. Step 5: Solve for x
    x = 12,368,455,629.46/108,184.40
  6. Step 6: Final answer
    x = 114,327.53

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1.5x scale

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.