Home / 103,798.06-155,647.88-53,828.15

Finding the Fourth Proportional to 103,798.06, 155,647.88 and 53,828.15

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Solution

The fourth proportional to 103,798.06, 155,647.88 and 53,828.15 is: 80,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,798.06 : 155,647.88 = 53,828.15 : x
  2. Step 2: Convert to fraction form
    103,798.06/155,647.88 = 53,828.15/x
  3. Step 3: Cross multiply
    103,798.06x = 155,647.88 × 53,828.15
  4. Step 4: Simplify right side
    103,798.06x = 8,378,236,586.30
  5. Step 5: Solve for x
    x = 8,378,236,586.30/103,798.06
  6. Step 6: Final answer
    x = 80,716.70

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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.