Home / 140,461.50-193,840.38-85,271.49

Finding the Fourth Proportional to 140,461.50, 193,840.38 and 85,271.49

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Solution

The fourth proportional to 140,461.50, 193,840.38 and 85,271.49 is: 117,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,461.50 : 193,840.38 = 85,271.49 : x
  2. Step 2: Convert to fraction form
    140,461.50/193,840.38 = 85,271.49/x
  3. Step 3: Cross multiply
    140,461.50x = 193,840.38 × 85,271.49
  4. Step 4: Simplify right side
    140,461.50x = 16,529,058,024.77
  5. Step 5: Solve for x
    x = 16,529,058,024.77/140,461.50
  6. Step 6: Final answer
    x = 117,676.79

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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.