Home / 198,897.59-274,478.67-108,254.21

Finding the Fourth Proportional to 198,897.59, 274,478.67 and 108,254.21

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Solution

The fourth proportional to 198,897.59, 274,478.67 and 108,254.21 is: 149,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,897.59 : 274,478.67 = 108,254.21 : x
  2. Step 2: Convert to fraction form
    198,897.59/274,478.67 = 108,254.21/x
  3. Step 3: Cross multiply
    198,897.59x = 274,478.67 × 108,254.21
  4. Step 4: Simplify right side
    198,897.59x = 29,713,470,210.31
  5. Step 5: Solve for x
    x = 29,713,470,210.31/198,897.59
  6. Step 6: Final answer
    x = 149,390.80

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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.