Home / 153,986.40-230,979.60-137,397.60

Finding the Fourth Proportional to 153,986.40, 230,979.60 and 137,397.60

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Solution

The fourth proportional to 153,986.40, 230,979.60 and 137,397.60 is: 206,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,986.40 : 230,979.60 = 137,397.60 : x
  2. Step 2: Convert to fraction form
    153,986.40/230,979.60 = 137,397.60/x
  3. Step 3: Cross multiply
    153,986.40x = 230,979.60 × 137,397.60
  4. Step 4: Simplify right side
    153,986.40x = 31,736,042,688.96
  5. Step 5: Solve for x
    x = 31,736,042,688.96/153,986.40
  6. Step 6: Final answer
    x = 206,096.40

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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.