Home / 209,185.12-313,714.80-59,437.58

Finding the Fourth Proportional to 209,185.12, 313,714.80 and 59,437.58

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Solution

The fourth proportional to 209,185.12, 313,714.80 and 59,437.58 is: 89,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,185.12 : 313,714.80 = 59,437.58 : x
  2. Step 2: Convert to fraction form
    209,185.12/313,714.80 = 59,437.58/x
  3. Step 3: Cross multiply
    209,185.12x = 313,714.80 × 59,437.58
  4. Step 4: Simplify right side
    209,185.12x = 18,646,449,306.47
  5. Step 5: Solve for x
    x = 18,646,449,306.47/209,185.12
  6. Step 6: Final answer
    x = 89,138.51

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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.