Home / 156,826.96-216,421.43-85,206.96

Finding the Fourth Proportional to 156,826.96, 216,421.43 and 85,206.96

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Solution

The fourth proportional to 156,826.96, 216,421.43 and 85,206.96 is: 117,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,826.96 : 216,421.43 = 85,206.96 : x
  2. Step 2: Convert to fraction form
    156,826.96/216,421.43 = 85,206.96/x
  3. Step 3: Cross multiply
    156,826.96x = 216,421.43 × 85,206.96
  4. Step 4: Simplify right side
    156,826.96x = 18,440,612,129.15
  5. Step 5: Solve for x
    x = 18,440,612,129.15/156,826.96
  6. Step 6: Final answer
    x = 117,585.73

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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.