Home / 137,222.20-205,962.90-84,734.20

Finding the Fourth Proportional to 137,222.20, 205,962.90 and 84,734.20

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Solution

The fourth proportional to 137,222.20, 205,962.90 and 84,734.20 is: 127,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,222.20 : 205,962.90 = 84,734.20 : x
  2. Step 2: Convert to fraction form
    137,222.20/205,962.90 = 84,734.20/x
  3. Step 3: Cross multiply
    137,222.20x = 205,962.90 × 84,734.20
  4. Step 4: Simplify right side
    137,222.20x = 17,452,101,561.18
  5. Step 5: Solve for x
    x = 17,452,101,561.18/137,222.20
  6. Step 6: Final answer
    x = 127,181.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.