Home / 207,357.90-311,036.86-67,130.70

Finding the Fourth Proportional to 207,357.90, 311,036.86 and 67,130.70

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Solution

The fourth proportional to 207,357.90, 311,036.86 and 67,130.70 is: 100,696.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,357.90 : 311,036.86 = 67,130.70 : x
  2. Step 2: Convert to fraction form
    207,357.90/311,036.86 = 67,130.70/x
  3. Step 3: Cross multiply
    207,357.90x = 311,036.86 × 67,130.70
  4. Step 4: Simplify right side
    207,357.90x = 20,880,122,137.60
  5. Step 5: Solve for x
    x = 20,880,122,137.60/207,357.90
  6. Step 6: Final answer
    x = 100,696.05

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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.