Home / 142,587.93-196,757.85-85,215.84

Finding the Fourth Proportional to 142,587.93, 196,757.85 and 85,215.84

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Solution

The fourth proportional to 142,587.93, 196,757.85 and 85,215.84 is: 117,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,587.93 : 196,757.85 = 85,215.84 : x
  2. Step 2: Convert to fraction form
    142,587.93/196,757.85 = 85,215.84/x
  3. Step 3: Cross multiply
    142,587.93x = 196,757.85 × 85,215.84
  4. Step 4: Simplify right side
    142,587.93x = 16,766,885,464.34
  5. Step 5: Solve for x
    x = 16,766,885,464.34/142,587.93
  6. Step 6: Final answer
    x = 117,589.80

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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.