Home / 129,010.20-193,256.10-73,541.40

Finding the Fourth Proportional to 129,010.20, 193,256.10 and 73,541.40

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Solution

The fourth proportional to 129,010.20, 193,256.10 and 73,541.40 is: 110,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,010.20 : 193,256.10 = 73,541.40 : x
  2. Step 2: Convert to fraction form
    129,010.20/193,256.10 = 73,541.40/x
  3. Step 3: Cross multiply
    129,010.20x = 193,256.10 × 73,541.40
  4. Step 4: Simplify right side
    129,010.20x = 14,212,324,152.54
  5. Step 5: Solve for x
    x = 14,212,324,152.54/129,010.20
  6. Step 6: Final answer
    x = 110,164.34

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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.