Home / 127,770.32-191,525.88-61,112.72

Finding the Fourth Proportional to 127,770.32, 191,525.88 and 61,112.72

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Solution

The fourth proportional to 127,770.32, 191,525.88 and 61,112.72 is: 91,607.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,770.32 : 191,525.88 = 61,112.72 : x
  2. Step 2: Convert to fraction form
    127,770.32/191,525.88 = 61,112.72/x
  3. Step 3: Cross multiply
    127,770.32x = 191,525.88 × 61,112.72
  4. Step 4: Simplify right side
    127,770.32x = 11,704,667,477.19
  5. Step 5: Solve for x
    x = 11,704,667,477.19/127,770.32
  6. Step 6: Final answer
    x = 91,607.09

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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.