Home / 166,869.36-250,129.08-78,048

Finding the Fourth Proportional to 166,869.36, 250,129.08 and 78,048

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Solution

The fourth proportional to 166,869.36, 250,129.08 and 78,048 is: 116,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,869.36 : 250,129.08 = 78,048 : x
  2. Step 2: Convert to fraction form
    166,869.36/250,129.08 = 78,048/x
  3. Step 3: Cross multiply
    166,869.36x = 250,129.08 × 78,048
  4. Step 4: Simplify right side
    166,869.36x = 19,522,074,435.84
  5. Step 5: Solve for x
    x = 19,522,074,435.84/166,869.36
  6. Step 6: Final answer
    x = 116,990.17

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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.