Home / 156,977.06-216,631.06-85,357.56

Finding the Fourth Proportional to 156,977.06, 216,631.06 and 85,357.56

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Solution

The fourth proportional to 156,977.06, 216,631.06 and 85,357.56 is: 117,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,977.06 : 216,631.06 = 85,357.56 : x
  2. Step 2: Convert to fraction form
    156,977.06/216,631.06 = 85,357.56/x
  3. Step 3: Cross multiply
    156,977.06x = 216,631.06 × 85,357.56
  4. Step 4: Simplify right side
    156,977.06x = 18,491,098,701.81
  5. Step 5: Solve for x
    x = 18,491,098,701.81/156,977.06
  6. Step 6: Final answer
    x = 117,794.91

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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.