Home / 156,040.36-215,337.24-84,421.92

Finding the Fourth Proportional to 156,040.36, 215,337.24 and 84,421.92

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Solution

The fourth proportional to 156,040.36, 215,337.24 and 84,421.92 is: 116,503.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,040.36 : 215,337.24 = 84,421.92 : x
  2. Step 2: Convert to fraction form
    156,040.36/215,337.24 = 84,421.92/x
  3. Step 3: Cross multiply
    156,040.36x = 215,337.24 × 84,421.92
  4. Step 4: Simplify right side
    156,040.36x = 18,179,183,248.30
  5. Step 5: Solve for x
    x = 18,179,183,248.30/156,040.36
  6. Step 6: Final answer
    x = 116,503.08

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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.