Home / 230,147.10-317,596.57-128,172.54

Finding the Fourth Proportional to 230,147.10, 317,596.57 and 128,172.54

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Solution

The fourth proportional to 230,147.10, 317,596.57 and 128,172.54 is: 176,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,147.10 : 317,596.57 = 128,172.54 : x
  2. Step 2: Convert to fraction form
    230,147.10/317,596.57 = 128,172.54/x
  3. Step 3: Cross multiply
    230,147.10x = 317,596.57 × 128,172.54
  4. Step 4: Simplify right side
    230,147.10x = 40,707,157,484.21
  5. Step 5: Solve for x
    x = 40,707,157,484.21/230,147.10
  6. Step 6: Final answer
    x = 176,874.52

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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.