Home / 198,735.40-297,908.70-98,813.80

Finding the Fourth Proportional to 198,735.40, 297,908.70 and 98,813.80

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Solution

The fourth proportional to 198,735.40, 297,908.70 and 98,813.80 is: 148,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,735.40 : 297,908.70 = 98,813.80 : x
  2. Step 2: Convert to fraction form
    198,735.40/297,908.70 = 98,813.80/x
  3. Step 3: Cross multiply
    198,735.40x = 297,908.70 × 98,813.80
  4. Step 4: Simplify right side
    198,735.40x = 29,437,490,700.06
  5. Step 5: Solve for x
    x = 29,437,490,700.06/198,735.40
  6. Step 6: Final answer
    x = 148,124.04

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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.