Home / 121,145.94-181,680.09-40,077.90

Finding the Fourth Proportional to 121,145.94, 181,680.09 and 40,077.90

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Solution

The fourth proportional to 121,145.94, 181,680.09 and 40,077.90 is: 60,104.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,145.94 : 181,680.09 = 40,077.90 : x
  2. Step 2: Convert to fraction form
    121,145.94/181,680.09 = 40,077.90/x
  3. Step 3: Cross multiply
    121,145.94x = 181,680.09 × 40,077.90
  4. Step 4: Simplify right side
    121,145.94x = 7,281,356,479.01
  5. Step 5: Solve for x
    x = 7,281,356,479.01/121,145.94
  6. Step 6: Final answer
    x = 60,104.01

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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.