Home / 147,177.95-203,077.80-86,767.54

Finding the Fourth Proportional to 147,177.95, 203,077.80 and 86,767.54

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Solution

The fourth proportional to 147,177.95, 203,077.80 and 86,767.54 is: 119,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,177.95 : 203,077.80 = 86,767.54 : x
  2. Step 2: Convert to fraction form
    147,177.95/203,077.80 = 86,767.54/x
  3. Step 3: Cross multiply
    147,177.95x = 203,077.80 × 86,767.54
  4. Step 4: Simplify right side
    147,177.95x = 17,620,560,626.92
  5. Step 5: Solve for x
    x = 17,620,560,626.92/147,177.95
  6. Step 6: Final answer
    x = 119,722.83

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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.