Home / 168,905.40-253,358.10-155,127.30

Finding the Fourth Proportional to 168,905.40, 253,358.10 and 155,127.30

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Solution

The fourth proportional to 168,905.40, 253,358.10 and 155,127.30 is: 232,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,905.40 : 253,358.10 = 155,127.30 : x
  2. Step 2: Convert to fraction form
    168,905.40/253,358.10 = 155,127.30/x
  3. Step 3: Cross multiply
    168,905.40x = 253,358.10 × 155,127.30
  4. Step 4: Simplify right side
    168,905.40x = 39,302,757,986.13
  5. Step 5: Solve for x
    x = 39,302,757,986.13/168,905.40
  6. Step 6: Final answer
    x = 232,690.95

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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.