Home / 171,491.32-256,776.18-139,771.36

Finding the Fourth Proportional to 171,491.32, 256,776.18 and 139,771.36

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Solution

The fourth proportional to 171,491.32, 256,776.18 and 139,771.36 is: 209,281.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,491.32 : 256,776.18 = 139,771.36 : x
  2. Step 2: Convert to fraction form
    171,491.32/256,776.18 = 139,771.36/x
  3. Step 3: Cross multiply
    171,491.32x = 256,776.18 × 139,771.36
  4. Step 4: Simplify right side
    171,491.32x = 35,889,955,894.20
  5. Step 5: Solve for x
    x = 35,889,955,894.20/171,491.32
  6. Step 6: Final answer
    x = 209,281.47

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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.