Home / 103,610.35-155,324.40-70,222.15

Finding the Fourth Proportional to 103,610.35, 155,324.40 and 70,222.15

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Solution

The fourth proportional to 103,610.35, 155,324.40 and 70,222.15 is: 105,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,610.35 : 155,324.40 = 70,222.15 : x
  2. Step 2: Convert to fraction form
    103,610.35/155,324.40 = 70,222.15/x
  3. Step 3: Cross multiply
    103,610.35x = 155,324.40 × 70,222.15
  4. Step 4: Simplify right side
    103,610.35x = 10,907,213,315.46
  5. Step 5: Solve for x
    x = 10,907,213,315.46/103,610.35
  6. Step 6: Final answer
    x = 105,271.46

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1.5x scale

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.