Home / 105,696.30-145,783.62-67,482.12

Finding the Fourth Proportional to 105,696.30, 145,783.62 and 67,482.12

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Solution

The fourth proportional to 105,696.30, 145,783.62 and 67,482.12 is: 93,075.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,696.30 : 145,783.62 = 67,482.12 : x
  2. Step 2: Convert to fraction form
    105,696.30/145,783.62 = 67,482.12/x
  3. Step 3: Cross multiply
    105,696.30x = 145,783.62 × 67,482.12
  4. Step 4: Simplify right side
    105,696.30x = 9,837,787,738.87
  5. Step 5: Solve for x
    x = 9,837,787,738.87/105,696.30
  6. Step 6: Final answer
    x = 93,075.99

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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.