Home / 201,790.20-302,570.10-83,321.40

Finding the Fourth Proportional to 201,790.20, 302,570.10 and 83,321.40

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Solution

The fourth proportional to 201,790.20, 302,570.10 and 83,321.40 is: 124,934.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,790.20 : 302,570.10 = 83,321.40 : x
  2. Step 2: Convert to fraction form
    201,790.20/302,570.10 = 83,321.40/x
  3. Step 3: Cross multiply
    201,790.20x = 302,570.10 × 83,321.40
  4. Step 4: Simplify right side
    201,790.20x = 25,210,564,330.14
  5. Step 5: Solve for x
    x = 25,210,564,330.14/201,790.20
  6. Step 6: Final answer
    x = 124,934.53

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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.