Home / 149,784.41-206,703.88-85,250.48

Finding the Fourth Proportional to 149,784.41, 206,703.88 and 85,250.48

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Solution

The fourth proportional to 149,784.41, 206,703.88 and 85,250.48 is: 117,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,784.41 : 206,703.88 = 85,250.48 : x
  2. Step 2: Convert to fraction form
    149,784.41/206,703.88 = 85,250.48/x
  3. Step 3: Cross multiply
    149,784.41x = 206,703.88 × 85,250.48
  4. Step 4: Simplify right side
    149,784.41x = 17,621,603,741.22
  5. Step 5: Solve for x
    x = 17,621,603,741.22/149,784.41
  6. Step 6: Final answer
    x = 117,646.45

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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.