Home / 147,640.95-203,742.20-83,110.03

Finding the Fourth Proportional to 147,640.95, 203,742.20 and 83,110.03

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Solution

The fourth proportional to 147,640.95, 203,742.20 and 83,110.03 is: 114,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,640.95 : 203,742.20 = 83,110.03 : x
  2. Step 2: Convert to fraction form
    147,640.95/203,742.20 = 83,110.03/x
  3. Step 3: Cross multiply
    147,640.95x = 203,742.20 × 83,110.03
  4. Step 4: Simplify right side
    147,640.95x = 16,933,020,052.69
  5. Step 5: Solve for x
    x = 16,933,020,052.69/147,640.95
  6. Step 6: Final answer
    x = 114,690.54

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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.