Home / 121,316.88-181,852.20-46,417.80

Finding the Fourth Proportional to 121,316.88, 181,852.20 and 46,417.80

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Solution

The fourth proportional to 121,316.88, 181,852.20 and 46,417.80 is: 69,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,316.88 : 181,852.20 = 46,417.80 : x
  2. Step 2: Convert to fraction form
    121,316.88/181,852.20 = 46,417.80/x
  3. Step 3: Cross multiply
    121,316.88x = 181,852.20 × 46,417.80
  4. Step 4: Simplify right side
    121,316.88x = 8,441,179,049.16
  5. Step 5: Solve for x
    x = 8,441,179,049.16/121,316.88
  6. Step 6: Final answer
    x = 69,579.59

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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.