Home / 121,112.73-181,678.32-36,880.08

Finding the Fourth Proportional to 121,112.73, 181,678.32 and 36,880.08

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Solution

The fourth proportional to 121,112.73, 181,678.32 and 36,880.08 is: 55,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,112.73 : 181,678.32 = 36,880.08 : x
  2. Step 2: Convert to fraction form
    121,112.73/181,678.32 = 36,880.08/x
  3. Step 3: Cross multiply
    121,112.73x = 181,678.32 × 36,880.08
  4. Step 4: Simplify right side
    121,112.73x = 6,700,310,975.87
  5. Step 5: Solve for x
    x = 6,700,310,975.87/121,112.73
  6. Step 6: Final answer
    x = 55,322.93

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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.