Home / 137,965.70-206,948.55-102,536.30

Finding the Fourth Proportional to 137,965.70, 206,948.55 and 102,536.30

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Solution

The fourth proportional to 137,965.70, 206,948.55 and 102,536.30 is: 153,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,965.70 : 206,948.55 = 102,536.30 : x
  2. Step 2: Convert to fraction form
    137,965.70/206,948.55 = 102,536.30/x
  3. Step 3: Cross multiply
    137,965.70x = 206,948.55 × 102,536.30
  4. Step 4: Simplify right side
    137,965.70x = 21,219,738,607.37
  5. Step 5: Solve for x
    x = 21,219,738,607.37/137,965.70
  6. Step 6: Final answer
    x = 153,804.45

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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.