Home / 139,297.20-208,868.04-45,795.12

Finding the Fourth Proportional to 139,297.20, 208,868.04 and 45,795.12

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Solution

The fourth proportional to 139,297.20, 208,868.04 and 45,795.12 is: 68,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,297.20 : 208,868.04 = 45,795.12 : x
  2. Step 2: Convert to fraction form
    139,297.20/208,868.04 = 45,795.12/x
  3. Step 3: Cross multiply
    139,297.20x = 208,868.04 × 45,795.12
  4. Step 4: Simplify right side
    139,297.20x = 9,565,136,955.96
  5. Step 5: Solve for x
    x = 9,565,136,955.96/139,297.20
  6. Step 6: Final answer
    x = 68,667.12

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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.