Home / 156,234.98-215,604.45-84,615.10

Finding the Fourth Proportional to 156,234.98, 215,604.45 and 84,615.10

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Solution

The fourth proportional to 156,234.98, 215,604.45 and 84,615.10 is: 116,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,234.98 : 215,604.45 = 84,615.10 : x
  2. Step 2: Convert to fraction form
    156,234.98/215,604.45 = 84,615.10/x
  3. Step 3: Cross multiply
    156,234.98x = 215,604.45 × 84,615.10
  4. Step 4: Simplify right side
    156,234.98x = 18,243,391,558.18
  5. Step 5: Solve for x
    x = 18,243,391,558.18/156,234.98
  6. Step 6: Final answer
    x = 116,768.93

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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.