Home / 121,209.67-181,566.60-98,800.21

Finding the Fourth Proportional to 121,209.67, 181,566.60 and 98,800.21

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Solution

The fourth proportional to 121,209.67, 181,566.60 and 98,800.21 is: 147,998.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209.67 : 181,566.60 = 98,800.21 : x
  2. Step 2: Convert to fraction form
    121,209.67/181,566.60 = 98,800.21/x
  3. Step 3: Cross multiply
    121,209.67x = 181,566.60 × 98,800.21
  4. Step 4: Simplify right side
    121,209.67x = 17,938,818,208.99
  5. Step 5: Solve for x
    x = 17,938,818,208.99/121,209.67
  6. Step 6: Final answer
    x = 147,998.24

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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.