Home / 201,269.40-277,778.04-129,857.16

Finding the Fourth Proportional to 201,269.40, 277,778.04 and 129,857.16

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Solution

The fourth proportional to 201,269.40, 277,778.04 and 129,857.16 is: 179,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,269.40 : 277,778.04 = 129,857.16 : x
  2. Step 2: Convert to fraction form
    201,269.40/277,778.04 = 129,857.16/x
  3. Step 3: Cross multiply
    201,269.40x = 277,778.04 × 129,857.16
  4. Step 4: Simplify right side
    201,269.40x = 36,071,467,384.77
  5. Step 5: Solve for x
    x = 36,071,467,384.77/201,269.40
  6. Step 6: Final answer
    x = 179,219.83

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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.