Home / 121,185.25-181,860.91-42,299.48

Finding the Fourth Proportional to 121,185.25, 181,860.91 and 42,299.48

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Solution

The fourth proportional to 121,185.25, 181,860.91 and 42,299.48 is: 63,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,185.25 : 181,860.91 = 42,299.48 : x
  2. Step 2: Convert to fraction form
    121,185.25/181,860.91 = 42,299.48/x
  3. Step 3: Cross multiply
    121,185.25x = 181,860.91 × 42,299.48
  4. Step 4: Simplify right side
    121,185.25x = 7,692,622,274.23
  5. Step 5: Solve for x
    x = 7,692,622,274.23/121,185.25
  6. Step 6: Final answer
    x = 63,478.21

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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.