Home / 156,653.15-216,185.27-85,033.09

Finding the Fourth Proportional to 156,653.15, 216,185.27 and 85,033.09

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Solution

The fourth proportional to 156,653.15, 216,185.27 and 85,033.09 is: 117,347.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,653.15 : 216,185.27 = 85,033.09 : x
  2. Step 2: Convert to fraction form
    156,653.15/216,185.27 = 85,033.09/x
  3. Step 3: Cross multiply
    156,653.15x = 216,185.27 × 85,033.09
  4. Step 4: Simplify right side
    156,653.15x = 18,382,901,095.42
  5. Step 5: Solve for x
    x = 18,382,901,095.42/156,653.15
  6. Step 6: Final answer
    x = 117,347.79

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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.