Home / 225,946.05-311,795.02-123,969.21

Finding the Fourth Proportional to 225,946.05, 311,795.02 and 123,969.21

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Solution

The fourth proportional to 225,946.05, 311,795.02 and 123,969.21 is: 171,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,946.05 : 311,795.02 = 123,969.21 : x
  2. Step 2: Convert to fraction form
    225,946.05/311,795.02 = 123,969.21/x
  3. Step 3: Cross multiply
    225,946.05x = 311,795.02 × 123,969.21
  4. Step 4: Simplify right side
    225,946.05x = 38,652,980,132.51
  5. Step 5: Solve for x
    x = 38,652,980,132.51/225,946.05
  6. Step 6: Final answer
    x = 171,071.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.