Home / 201,966.40-302,803.80-131,885.20

Finding the Fourth Proportional to 201,966.40, 302,803.80 and 131,885.20

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Solution

The fourth proportional to 201,966.40, 302,803.80 and 131,885.20 is: 197,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,966.40 : 302,803.80 = 131,885.20 : x
  2. Step 2: Convert to fraction form
    201,966.40/302,803.80 = 131,885.20/x
  3. Step 3: Cross multiply
    201,966.40x = 302,803.80 × 131,885.20
  4. Step 4: Simplify right side
    201,966.40x = 39,935,339,723.76
  5. Step 5: Solve for x
    x = 39,935,339,723.76/201,966.40
  6. Step 6: Final answer
    x = 197,732.59

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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.