Home / 198,703.43-274,205.35-112,678.19

Finding the Fourth Proportional to 198,703.43, 274,205.35 and 112,678.19

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Solution

The fourth proportional to 198,703.43, 274,205.35 and 112,678.19 is: 155,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,703.43 : 274,205.35 = 112,678.19 : x
  2. Step 2: Convert to fraction form
    198,703.43/274,205.35 = 112,678.19/x
  3. Step 3: Cross multiply
    198,703.43x = 274,205.35 × 112,678.19
  4. Step 4: Simplify right side
    198,703.43x = 30,896,962,526.32
  5. Step 5: Solve for x
    x = 30,896,962,526.32/198,703.43
  6. Step 6: Final answer
    x = 155,492.85

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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.