Home / 138,974.96-208,474.74-39,136.04

Finding the Fourth Proportional to 138,974.96, 208,474.74 and 39,136.04

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Solution

The fourth proportional to 138,974.96, 208,474.74 and 39,136.04 is: 58,707.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,974.96 : 208,474.74 = 39,136.04 : x
  2. Step 2: Convert to fraction form
    138,974.96/208,474.74 = 39,136.04/x
  3. Step 3: Cross multiply
    138,974.96x = 208,474.74 × 39,136.04
  4. Step 4: Simplify right side
    138,974.96x = 8,158,875,763.63
  5. Step 5: Solve for x
    x = 8,158,875,763.63/138,974.96
  6. Step 6: Final answer
    x = 58,707.52

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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.