Home / 147,108.56-203,013.74-83,455.92

Finding the Fourth Proportional to 147,108.56, 203,013.74 and 83,455.92

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Solution

The fourth proportional to 147,108.56, 203,013.74 and 83,455.92 is: 115,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,108.56 : 203,013.74 = 83,455.92 : x
  2. Step 2: Convert to fraction form
    147,108.56/203,013.74 = 83,455.92/x
  3. Step 3: Cross multiply
    147,108.56x = 203,013.74 × 83,455.92
  4. Step 4: Simplify right side
    147,108.56x = 16,942,698,652.98
  5. Step 5: Solve for x
    x = 16,942,698,652.98/147,108.56
  6. Step 6: Final answer
    x = 115,171.40

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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.