Home / 201,749.40-302,186.70-130,890.60

Finding the Fourth Proportional to 201,749.40, 302,186.70 and 130,890.60

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Solution

The fourth proportional to 201,749.40, 302,186.70 and 130,890.60 is: 196,052.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,749.40 : 302,186.70 = 130,890.60 : x
  2. Step 2: Convert to fraction form
    201,749.40/302,186.70 = 130,890.60/x
  3. Step 3: Cross multiply
    201,749.40x = 302,186.70 × 130,890.60
  4. Step 4: Simplify right side
    201,749.40x = 39,553,398,475.02
  5. Step 5: Solve for x
    x = 39,553,398,475.02/201,749.40
  6. Step 6: Final answer
    x = 196,052.12

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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.