Home / 193,312.80-289,969.20-137,325.60

Finding the Fourth Proportional to 193,312.80, 289,969.20 and 137,325.60

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Solution

The fourth proportional to 193,312.80, 289,969.20 and 137,325.60 is: 205,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,312.80 : 289,969.20 = 137,325.60 : x
  2. Step 2: Convert to fraction form
    193,312.80/289,969.20 = 137,325.60/x
  3. Step 3: Cross multiply
    193,312.80x = 289,969.20 × 137,325.60
  4. Step 4: Simplify right side
    193,312.80x = 39,820,194,371.52
  5. Step 5: Solve for x
    x = 39,820,194,371.52/193,312.80
  6. Step 6: Final answer
    x = 205,988.40

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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.