Home / 156,638.83-216,162.00-85,018.85

Finding the Fourth Proportional to 156,638.83, 216,162.00 and 85,018.85

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Solution

The fourth proportional to 156,638.83, 216,162.00 and 85,018.85 is: 117,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,638.83 : 216,162.00 = 85,018.85 : x
  2. Step 2: Convert to fraction form
    156,638.83/216,162.00 = 85,018.85/x
  3. Step 3: Cross multiply
    156,638.83x = 216,162.00 × 85,018.85
  4. Step 4: Simplify right side
    156,638.83x = 18,377,845,654.10
  5. Step 5: Solve for x
    x = 18,377,845,654.10/156,638.83
  6. Step 6: Final answer
    x = 117,326.24

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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.