Home / 147,188.80-203,147.06-86,755.92

Finding the Fourth Proportional to 147,188.80, 203,147.06 and 86,755.92

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Solution

The fourth proportional to 147,188.80, 203,147.06 and 86,755.92 is: 119,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,188.80 : 203,147.06 = 86,755.92 : x
  2. Step 2: Convert to fraction form
    147,188.80/203,147.06 = 86,755.92/x
  3. Step 3: Cross multiply
    147,188.80x = 203,147.06 × 86,755.92
  4. Step 4: Simplify right side
    147,188.80x = 17,624,208,890.01
  5. Step 5: Solve for x
    x = 17,624,208,890.01/147,188.80
  6. Step 6: Final answer
    x = 119,738.79

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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.