Home / 193,618.80-290,428.20-127,263.60

Finding the Fourth Proportional to 193,618.80, 290,428.20 and 127,263.60

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Solution

The fourth proportional to 193,618.80, 290,428.20 and 127,263.60 is: 190,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,618.80 : 290,428.20 = 127,263.60 : x
  2. Step 2: Convert to fraction form
    193,618.80/290,428.20 = 127,263.60/x
  3. Step 3: Cross multiply
    193,618.80x = 290,428.20 × 127,263.60
  4. Step 4: Simplify right side
    193,618.80x = 36,960,938,273.52
  5. Step 5: Solve for x
    x = 36,960,938,273.52/193,618.80
  6. Step 6: Final answer
    x = 190,895.40

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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.