Home / 162,126.56-223,558.32-105,432.80

Finding the Fourth Proportional to 162,126.56, 223,558.32 and 105,432.80

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Solution

The fourth proportional to 162,126.56, 223,558.32 and 105,432.80 is: 145,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,126.56 : 223,558.32 = 105,432.80 : x
  2. Step 2: Convert to fraction form
    162,126.56/223,558.32 = 105,432.80/x
  3. Step 3: Cross multiply
    162,126.56x = 223,558.32 × 105,432.80
  4. Step 4: Simplify right side
    162,126.56x = 23,570,379,640.90
  5. Step 5: Solve for x
    x = 23,570,379,640.90/162,126.56
  6. Step 6: Final answer
    x = 145,382.59

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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.