Home / 212,080.66-318,068.52-126,714.82

Finding the Fourth Proportional to 212,080.66, 318,068.52 and 126,714.82

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Solution

The fourth proportional to 212,080.66, 318,068.52 and 126,714.82 is: 190,040.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,080.66 : 318,068.52 = 126,714.82 : x
  2. Step 2: Convert to fraction form
    212,080.66/318,068.52 = 126,714.82/x
  3. Step 3: Cross multiply
    212,080.66x = 318,068.52 × 126,714.82
  4. Step 4: Simplify right side
    212,080.66x = 40,303,995,259.47
  5. Step 5: Solve for x
    x = 40,303,995,259.47/212,080.66
  6. Step 6: Final answer
    x = 190,040.88

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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.