Home / 149,563.40-206,402.10-85,913.96

Finding the Fourth Proportional to 149,563.40, 206,402.10 and 85,913.96

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Solution

The fourth proportional to 149,563.40, 206,402.10 and 85,913.96 is: 118,563.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563.40 : 206,402.10 = 85,913.96 : x
  2. Step 2: Convert to fraction form
    149,563.40/206,402.10 = 85,913.96/x
  3. Step 3: Cross multiply
    149,563.40x = 206,402.10 × 85,913.96
  4. Step 4: Simplify right side
    149,563.40x = 17,732,821,763.32
  5. Step 5: Solve for x
    x = 17,732,821,763.32/149,563.40
  6. Step 6: Final answer
    x = 118,563.91

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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.