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Finding the Fourth Proportional to 149,604.20, 206,461.71 and 85,946.10

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Solution

The fourth proportional to 149,604.20, 206,461.71 and 85,946.10 is: 118,610.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,604.20 : 206,461.71 = 85,946.10 : x
  2. Step 2: Convert to fraction form
    149,604.20/206,461.71 = 85,946.10/x
  3. Step 3: Cross multiply
    149,604.20x = 206,461.71 × 85,946.10
  4. Step 4: Simplify right side
    149,604.20x = 17,744,577,999.60
  5. Step 5: Solve for x
    x = 17,744,577,999.60/149,604.20
  6. Step 6: Final answer
    x = 118,610.16

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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.