Home / 164,415.70-246,623.55-128,986.30

Finding the Fourth Proportional to 164,415.70, 246,623.55 and 128,986.30

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Solution

The fourth proportional to 164,415.70, 246,623.55 and 128,986.30 is: 193,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,415.70 : 246,623.55 = 128,986.30 : x
  2. Step 2: Convert to fraction form
    164,415.70/246,623.55 = 128,986.30/x
  3. Step 3: Cross multiply
    164,415.70x = 246,623.55 × 128,986.30
  4. Step 4: Simplify right side
    164,415.70x = 31,811,059,207.37
  5. Step 5: Solve for x
    x = 31,811,059,207.37/164,415.70
  6. Step 6: Final answer
    x = 193,479.45

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Similar ratio
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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.