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Finding the Fourth Proportional to 149,603.54, 206,471.14 and 85,941.18

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Solution

The fourth proportional to 149,603.54, 206,471.14 and 85,941.18 is: 118,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,603.54 : 206,471.14 = 85,941.18 : x
  2. Step 2: Convert to fraction form
    149,603.54/206,471.14 = 85,941.18/x
  3. Step 3: Cross multiply
    149,603.54x = 206,471.14 × 85,941.18
  4. Step 4: Simplify right side
    149,603.54x = 17,744,373,407.55
  5. Step 5: Solve for x
    x = 17,744,373,407.55/149,603.54
  6. Step 6: Final answer
    x = 118,609.32

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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.