Home / 159,072.66-219,519.18-87,450.84

Finding the Fourth Proportional to 159,072.66, 219,519.18 and 87,450.84

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Solution

The fourth proportional to 159,072.66, 219,519.18 and 87,450.84 is: 120,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,072.66 : 219,519.18 = 87,450.84 : x
  2. Step 2: Convert to fraction form
    159,072.66/219,519.18 = 87,450.84/x
  3. Step 3: Cross multiply
    159,072.66x = 219,519.18 × 87,450.84
  4. Step 4: Simplify right side
    159,072.66x = 19,197,136,687.11
  5. Step 5: Solve for x
    x = 19,197,136,687.11/159,072.66
  6. Step 6: Final answer
    x = 120,681.56

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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.