Home / 102,394.65-141,305.26-57,075.50

Finding the Fourth Proportional to 102,394.65, 141,305.26 and 57,075.50

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Solution

The fourth proportional to 102,394.65, 141,305.26 and 57,075.50 is: 78,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,394.65 : 141,305.26 = 57,075.50 : x
  2. Step 2: Convert to fraction form
    102,394.65/141,305.26 = 57,075.50/x
  3. Step 3: Cross multiply
    102,394.65x = 141,305.26 × 57,075.50
  4. Step 4: Simplify right side
    102,394.65x = 8,065,067,660.60
  5. Step 5: Solve for x
    x = 8,065,067,660.60/102,394.65
  6. Step 6: Final answer
    x = 78,764.54

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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.