Home / 206,681.40-285,280.92-135,072.54

Finding the Fourth Proportional to 206,681.40, 285,280.92 and 135,072.54

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Solution

The fourth proportional to 206,681.40, 285,280.92 and 135,072.54 is: 186,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,681.40 : 285,280.92 = 135,072.54 : x
  2. Step 2: Convert to fraction form
    206,681.40/285,280.92 = 135,072.54/x
  3. Step 3: Cross multiply
    206,681.40x = 285,280.92 × 135,072.54
  4. Step 4: Simplify right side
    206,681.40x = 38,533,618,477.94
  5. Step 5: Solve for x
    x = 38,533,618,477.94/206,681.40
  6. Step 6: Final answer
    x = 186,439.70

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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.