Home / 112,206.78-168,211.73-45,702.86

Finding the Fourth Proportional to 112,206.78, 168,211.73 and 45,702.86

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Solution

The fourth proportional to 112,206.78, 168,211.73 and 45,702.86 is: 68,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,206.78 : 168,211.73 = 45,702.86 : x
  2. Step 2: Convert to fraction form
    112,206.78/168,211.73 = 45,702.86/x
  3. Step 3: Cross multiply
    112,206.78x = 168,211.73 × 45,702.86
  4. Step 4: Simplify right side
    112,206.78x = 7,687,756,076.97
  5. Step 5: Solve for x
    x = 7,687,756,076.97/112,206.78
  6. Step 6: Final answer
    x = 68,514.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.