Home / 156,896.58-216,518.73-85,276.77

Finding the Fourth Proportional to 156,896.58, 216,518.73 and 85,276.77

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Solution

The fourth proportional to 156,896.58, 216,518.73 and 85,276.77 is: 117,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,896.58 : 216,518.73 = 85,276.77 : x
  2. Step 2: Convert to fraction form
    156,896.58/216,518.73 = 85,276.77/x
  3. Step 3: Cross multiply
    156,896.58x = 216,518.73 × 85,276.77
  4. Step 4: Simplify right side
    156,896.58x = 18,464,017,938.90
  5. Step 5: Solve for x
    x = 18,464,017,938.90/156,896.58
  6. Step 6: Final answer
    x = 117,682.73

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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.