Home / 156,855.35-216,461.70-85,235.42

Finding the Fourth Proportional to 156,855.35, 216,461.70 and 85,235.42

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Solution

The fourth proportional to 156,855.35, 216,461.70 and 85,235.42 is: 117,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,855.35 : 216,461.70 = 85,235.42 : x
  2. Step 2: Convert to fraction form
    156,855.35/216,461.70 = 85,235.42/x
  3. Step 3: Cross multiply
    156,855.35x = 216,461.70 × 85,235.42
  4. Step 4: Simplify right side
    156,855.35x = 18,450,204,454.57
  5. Step 5: Solve for x
    x = 18,450,204,454.57/156,855.35
  6. Step 6: Final answer
    x = 117,625.60

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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.