Home / 127,455.70-175,925.84-79,072.37

Finding the Fourth Proportional to 127,455.70, 175,925.84 and 79,072.37

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Solution

The fourth proportional to 127,455.70, 175,925.84 and 79,072.37 is: 109,142.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,455.70 : 175,925.84 = 79,072.37 : x
  2. Step 2: Convert to fraction form
    127,455.70/175,925.84 = 79,072.37/x
  3. Step 3: Cross multiply
    127,455.70x = 175,925.84 × 79,072.37
  4. Step 4: Simplify right side
    127,455.70x = 13,910,873,157.49
  5. Step 5: Solve for x
    x = 13,910,873,157.49/127,455.70
  6. Step 6: Final answer
    x = 109,142.81

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1.5x scale

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.