Home / 135,810.49-203,715.78-51,570.73

Finding the Fourth Proportional to 135,810.49, 203,715.78 and 51,570.73

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Solution

The fourth proportional to 135,810.49, 203,715.78 and 51,570.73 is: 77,356.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,810.49 : 203,715.78 = 51,570.73 : x
  2. Step 2: Convert to fraction form
    135,810.49/203,715.78 = 51,570.73/x
  3. Step 3: Cross multiply
    135,810.49x = 203,715.78 × 51,570.73
  4. Step 4: Simplify right side
    135,810.49x = 10,505,771,487.12
  5. Step 5: Solve for x
    x = 10,505,771,487.12/135,810.49
  6. Step 6: Final answer
    x = 77,356.11

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1.5x scale

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.