Home / 185,237.28-277,965-128,355.84

Finding the Fourth Proportional to 185,237.28, 277,965 and 128,355.84

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Solution

The fourth proportional to 185,237.28, 277,965 and 128,355.84 is: 192,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,237.28 : 277,965 = 128,355.84 : x
  2. Step 2: Convert to fraction form
    185,237.28/277,965 = 128,355.84/x
  3. Step 3: Cross multiply
    185,237.28x = 277,965 × 128,355.84
  4. Step 4: Simplify right side
    185,237.28x = 35,678,431,065.60
  5. Step 5: Solve for x
    x = 35,678,431,065.60/185,237.28
  6. Step 6: Final answer
    x = 192,609.34

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1.5x scale

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.