Home / 156,684.96-216,226.80-85,065.57

Finding the Fourth Proportional to 156,684.96, 216,226.80 and 85,065.57

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Solution

The fourth proportional to 156,684.96, 216,226.80 and 85,065.57 is: 117,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,684.96 : 216,226.80 = 85,065.57 : x
  2. Step 2: Convert to fraction form
    156,684.96/216,226.80 = 85,065.57/x
  3. Step 3: Cross multiply
    156,684.96x = 216,226.80 × 85,065.57
  4. Step 4: Simplify right side
    156,684.96x = 18,393,455,991.28
  5. Step 5: Solve for x
    x = 18,393,455,991.28/156,684.96
  6. Step 6: Final answer
    x = 117,391.33

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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.