Home / 121,323.10-181,990.05-46,479.10

Finding the Fourth Proportional to 121,323.10, 181,990.05 and 46,479.10

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Solution

The fourth proportional to 121,323.10, 181,990.05 and 46,479.10 is: 69,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,323.10 : 181,990.05 = 46,479.10 : x
  2. Step 2: Convert to fraction form
    121,323.10/181,990.05 = 46,479.10/x
  3. Step 3: Cross multiply
    121,323.10x = 181,990.05 × 46,479.10
  4. Step 4: Simplify right side
    121,323.10x = 8,458,733,732.96
  5. Step 5: Solve for x
    x = 8,458,733,732.96/121,323.10
  6. Step 6: Final answer
    x = 69,720.72

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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.