Home / 145,721.04-201,123.30-82,059.22

Finding the Fourth Proportional to 145,721.04, 201,123.30 and 82,059.22

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Solution

The fourth proportional to 145,721.04, 201,123.30 and 82,059.22 is: 113,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,721.04 : 201,123.30 = 82,059.22 : x
  2. Step 2: Convert to fraction form
    145,721.04/201,123.30 = 82,059.22/x
  3. Step 3: Cross multiply
    145,721.04x = 201,123.30 × 82,059.22
  4. Step 4: Simplify right side
    145,721.04x = 16,504,021,121.83
  5. Step 5: Solve for x
    x = 16,504,021,121.83/145,721.04
  6. Step 6: Final answer
    x = 113,257.64

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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.