Home / 260,082.06-390,136.59-82,602.96

Finding the Fourth Proportional to 260,082.06, 390,136.59 and 82,602.96

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Solution

The fourth proportional to 260,082.06, 390,136.59 and 82,602.96 is: 123,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,082.06 : 390,136.59 = 82,602.96 : x
  2. Step 2: Convert to fraction form
    260,082.06/390,136.59 = 82,602.96/x
  3. Step 3: Cross multiply
    260,082.06x = 390,136.59 × 82,602.96
  4. Step 4: Simplify right side
    260,082.06x = 32,226,437,138.31
  5. Step 5: Solve for x
    x = 32,226,437,138.31/260,082.06
  6. Step 6: Final answer
    x = 123,908.73

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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.