Home / 145,714.82-218,431.98-74,671.04

Finding the Fourth Proportional to 145,714.82, 218,431.98 and 74,671.04

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Solution

The fourth proportional to 145,714.82, 218,431.98 and 74,671.04 is: 111,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,714.82 : 218,431.98 = 74,671.04 : x
  2. Step 2: Convert to fraction form
    145,714.82/218,431.98 = 74,671.04/x
  3. Step 3: Cross multiply
    145,714.82x = 218,431.98 × 74,671.04
  4. Step 4: Simplify right side
    145,714.82x = 16,310,543,661.94
  5. Step 5: Solve for x
    x = 16,310,543,661.94/145,714.82
  6. Step 6: Final answer
    x = 111,934.70

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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.