Home / 198,931.59-274,629.83-153,511.29

Finding the Fourth Proportional to 198,931.59, 274,629.83 and 153,511.29

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Solution

The fourth proportional to 198,931.59, 274,629.83 and 153,511.29 is: 211,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,931.59 : 274,629.83 = 153,511.29 : x
  2. Step 2: Convert to fraction form
    198,931.59/274,629.83 = 153,511.29/x
  3. Step 3: Cross multiply
    198,931.59x = 274,629.83 × 153,511.29
  4. Step 4: Simplify right side
    198,931.59x = 42,158,778,708.22
  5. Step 5: Solve for x
    x = 42,158,778,708.22/198,931.59
  6. Step 6: Final answer
    x = 211,926.01

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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.