Home / 103,576.08-155,256.34-70,298.84

Finding the Fourth Proportional to 103,576.08, 155,256.34 and 70,298.84

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Solution

The fourth proportional to 103,576.08, 155,256.34 and 70,298.84 is: 105,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,576.08 : 155,256.34 = 70,298.84 : x
  2. Step 2: Convert to fraction form
    103,576.08/155,256.34 = 70,298.84/x
  3. Step 3: Cross multiply
    103,576.08x = 155,256.34 × 70,298.84
  4. Step 4: Simplify right side
    103,576.08x = 10,914,340,604.65
  5. Step 5: Solve for x
    x = 10,914,340,604.65/103,576.08
  6. Step 6: Final answer
    x = 105,375.11

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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.