Home / 198,637.22-274,124.76-107,999.28

Finding the Fourth Proportional to 198,637.22, 274,124.76 and 107,999.28

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Solution

The fourth proportional to 198,637.22, 274,124.76 and 107,999.28 is: 149,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,637.22 : 274,124.76 = 107,999.28 : x
  2. Step 2: Convert to fraction form
    198,637.22/274,124.76 = 107,999.28/x
  3. Step 3: Cross multiply
    198,637.22x = 274,124.76 × 107,999.28
  4. Step 4: Simplify right side
    198,637.22x = 29,605,276,710.17
  5. Step 5: Solve for x
    x = 29,605,276,710.17/198,637.22
  6. Step 6: Final answer
    x = 149,041.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.