Home / 198,886.58-274,492.40-111,681.46

Finding the Fourth Proportional to 198,886.58, 274,492.40 and 111,681.46

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Solution

The fourth proportional to 198,886.58, 274,492.40 and 111,681.46 is: 154,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,886.58 : 274,492.40 = 111,681.46 : x
  2. Step 2: Convert to fraction form
    198,886.58/274,492.40 = 111,681.46/x
  3. Step 3: Cross multiply
    198,886.58x = 274,492.40 × 111,681.46
  4. Step 4: Simplify right side
    198,886.58x = 30,655,711,990.90
  5. Step 5: Solve for x
    x = 30,655,711,990.90/198,886.58
  6. Step 6: Final answer
    x = 154,136.65

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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.