Home / 185,261.72-277,898.24-128,279.84

Finding the Fourth Proportional to 185,261.72, 277,898.24 and 128,279.84

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Solution

The fourth proportional to 185,261.72, 277,898.24 and 128,279.84 is: 192,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,261.72 : 277,898.24 = 128,279.84 : x
  2. Step 2: Convert to fraction form
    185,261.72/277,898.24 = 128,279.84/x
  3. Step 3: Cross multiply
    185,261.72x = 277,898.24 × 128,279.84
  4. Step 4: Simplify right side
    185,261.72x = 35,648,740,694.69
  5. Step 5: Solve for x
    x = 35,648,740,694.69/185,261.72
  6. Step 6: Final answer
    x = 192,423.68

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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.