Home / 120,028.24-179,980.71-70,205.68

Finding the Fourth Proportional to 120,028.24, 179,980.71 and 70,205.68

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Solution

The fourth proportional to 120,028.24, 179,980.71 and 70,205.68 is: 105,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,028.24 : 179,980.71 = 70,205.68 : x
  2. Step 2: Convert to fraction form
    120,028.24/179,980.71 = 70,205.68/x
  3. Step 3: Cross multiply
    120,028.24x = 179,980.71 × 70,205.68
  4. Step 4: Simplify right side
    120,028.24x = 12,635,668,132.43
  5. Step 5: Solve for x
    x = 12,635,668,132.43/120,028.24
  6. Step 6: Final answer
    x = 105,272.46

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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.