Home / 121,160.94-181,728.44-42,276.66

Finding the Fourth Proportional to 121,160.94, 181,728.44 and 42,276.66

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Solution

The fourth proportional to 121,160.94, 181,728.44 and 42,276.66 is: 63,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160.94 : 181,728.44 = 42,276.66 : x
  2. Step 2: Convert to fraction form
    121,160.94/181,728.44 = 42,276.66/x
  3. Step 3: Cross multiply
    121,160.94x = 181,728.44 × 42,276.66
  4. Step 4: Simplify right side
    121,160.94x = 7,682,870,561.57
  5. Step 5: Solve for x
    x = 7,682,870,561.57/121,160.94
  6. Step 6: Final answer
    x = 63,410.46

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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.