Home / 127,719.72-191,579.58-71,533.26

Finding the Fourth Proportional to 127,719.72, 191,579.58 and 71,533.26

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Solution

The fourth proportional to 127,719.72, 191,579.58 and 71,533.26 is: 107,299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,719.72 : 191,579.58 = 71,533.26 : x
  2. Step 2: Convert to fraction form
    127,719.72/191,579.58 = 71,533.26/x
  3. Step 3: Cross multiply
    127,719.72x = 191,579.58 × 71,533.26
  4. Step 4: Simplify right side
    127,719.72x = 13,704,311,906.83
  5. Step 5: Solve for x
    x = 13,704,311,906.83/127,719.72
  6. Step 6: Final answer
    x = 107,299.89

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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.