Home / 142,537.85-196,688.87-85,165.75

Finding the Fourth Proportional to 142,537.85, 196,688.87 and 85,165.75

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Solution

The fourth proportional to 142,537.85, 196,688.87 and 85,165.75 is: 117,520.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,537.85 : 196,688.87 = 85,165.75 : x
  2. Step 2: Convert to fraction form
    142,537.85/196,688.87 = 85,165.75/x
  3. Step 3: Cross multiply
    142,537.85x = 196,688.87 × 85,165.75
  4. Step 4: Simplify right side
    142,537.85x = 16,751,154,359.67
  5. Step 5: Solve for x
    x = 16,751,154,359.67/142,537.85
  6. Step 6: Final answer
    x = 117,520.75

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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.