Home / 121,183.47-181,858.25-42,297.69

Finding the Fourth Proportional to 121,183.47, 181,858.25 and 42,297.69

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Solution

The fourth proportional to 121,183.47, 181,858.25 and 42,297.69 is: 63,475.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,183.47 : 181,858.25 = 42,297.69 : x
  2. Step 2: Convert to fraction form
    121,183.47/181,858.25 = 42,297.69/x
  3. Step 3: Cross multiply
    121,183.47x = 181,858.25 × 42,297.69
  4. Step 4: Simplify right side
    121,183.47x = 7,692,183,882.44
  5. Step 5: Solve for x
    x = 7,692,183,882.44/121,183.47
  6. Step 6: Final answer
    x = 63,475.52

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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.