Home / 121,327.16-181,879.86-102,727.04

Finding the Fourth Proportional to 121,327.16, 181,879.86 and 102,727.04

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Solution

The fourth proportional to 121,327.16, 181,879.86 and 102,727.04 is: 153,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,327.16 : 181,879.86 = 102,727.04 : x
  2. Step 2: Convert to fraction form
    121,327.16/181,879.86 = 102,727.04/x
  3. Step 3: Cross multiply
    121,327.16x = 181,879.86 × 102,727.04
  4. Step 4: Simplify right side
    121,327.16x = 18,683,979,653.41
  5. Step 5: Solve for x
    x = 18,683,979,653.41/121,327.16
  6. Step 6: Final answer
    x = 153,996.68

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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.