Home / 207,331.80-311,011.83-70,499.19

Finding the Fourth Proportional to 207,331.80, 311,011.83 and 70,499.19

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Solution

The fourth proportional to 207,331.80, 311,011.83 and 70,499.19 is: 105,753.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,331.80 : 311,011.83 = 70,499.19 : x
  2. Step 2: Convert to fraction form
    207,331.80/311,011.83 = 70,499.19/x
  3. Step 3: Cross multiply
    207,331.80x = 311,011.83 × 70,499.19
  4. Step 4: Simplify right side
    207,331.80x = 21,926,080,841.00
  5. Step 5: Solve for x
    x = 21,926,080,841.00/207,331.80
  6. Step 6: Final answer
    x = 105,753.58

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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.