Home / 121,219.41-181,856.67-36,987.12

Finding the Fourth Proportional to 121,219.41, 181,856.67 and 36,987.12

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Solution

The fourth proportional to 121,219.41, 181,856.67 and 36,987.12 is: 55,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,219.41 : 181,856.67 = 36,987.12 : x
  2. Step 2: Convert to fraction form
    121,219.41/181,856.67 = 36,987.12/x
  3. Step 3: Cross multiply
    121,219.41x = 181,856.67 × 36,987.12
  4. Step 4: Simplify right side
    121,219.41x = 6,726,354,476.09
  5. Step 5: Solve for x
    x = 6,726,354,476.09/121,219.41
  6. Step 6: Final answer
    x = 55,489.09

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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.