Home / 156,835.17-216,429.42-85,215.70

Finding the Fourth Proportional to 156,835.17, 216,429.42 and 85,215.70

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Solution

The fourth proportional to 156,835.17, 216,429.42 and 85,215.70 is: 117,595.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,835.17 : 216,429.42 = 85,215.70 : x
  2. Step 2: Convert to fraction form
    156,835.17/216,429.42 = 85,215.70/x
  3. Step 3: Cross multiply
    156,835.17x = 216,429.42 × 85,215.70
  4. Step 4: Simplify right side
    156,835.17x = 18,443,185,245.36
  5. Step 5: Solve for x
    x = 18,443,185,245.36/156,835.17
  6. Step 6: Final answer
    x = 117,595.98

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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.