Home / 212,182.78-318,284.14-70,040.46

Finding the Fourth Proportional to 212,182.78, 318,284.14 and 70,040.46

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Solution

The fourth proportional to 212,182.78, 318,284.14 and 70,040.46 is: 105,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,182.78 : 318,284.14 = 70,040.46 : x
  2. Step 2: Convert to fraction form
    212,182.78/318,284.14 = 70,040.46/x
  3. Step 3: Cross multiply
    212,182.78x = 318,284.14 × 70,040.46
  4. Step 4: Simplify right side
    212,182.78x = 22,292,767,576.30
  5. Step 5: Solve for x
    x = 22,292,767,576.30/212,182.78
  6. Step 6: Final answer
    x = 105,063.98

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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.