Home / 198,635.16-274,174.70-118,119.40

Finding the Fourth Proportional to 198,635.16, 274,174.70 and 118,119.40

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Solution

The fourth proportional to 198,635.16, 274,174.70 and 118,119.40 is: 163,039.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,635.16 : 274,174.70 = 118,119.40 : x
  2. Step 2: Convert to fraction form
    198,635.16/274,174.70 = 118,119.40/x
  3. Step 3: Cross multiply
    198,635.16x = 274,174.70 × 118,119.40
  4. Step 4: Simplify right side
    198,635.16x = 32,385,351,059.18
  5. Step 5: Solve for x
    x = 32,385,351,059.18/198,635.16
  6. Step 6: Final answer
    x = 163,039.37

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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.