Home / 198,623.80-297,935.70-105,311.80

Finding the Fourth Proportional to 198,623.80, 297,935.70 and 105,311.80

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Solution

The fourth proportional to 198,623.80, 297,935.70 and 105,311.80 is: 157,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,623.80 : 297,935.70 = 105,311.80 : x
  2. Step 2: Convert to fraction form
    198,623.80/297,935.70 = 105,311.80/x
  3. Step 3: Cross multiply
    198,623.80x = 297,935.70 × 105,311.80
  4. Step 4: Simplify right side
    198,623.80x = 31,376,144,851.26
  5. Step 5: Solve for x
    x = 31,376,144,851.26/198,623.80
  6. Step 6: Final answer
    x = 157,967.70

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1.5x scale

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.