Home / 127,404.12-191,134.80-43,159.44

Finding the Fourth Proportional to 127,404.12, 191,134.80 and 43,159.44

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Solution

The fourth proportional to 127,404.12, 191,134.80 and 43,159.44 is: 64,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,404.12 : 191,134.80 = 43,159.44 : x
  2. Step 2: Convert to fraction form
    127,404.12/191,134.80 = 43,159.44/x
  3. Step 3: Cross multiply
    127,404.12x = 191,134.80 × 43,159.44
  4. Step 4: Simplify right side
    127,404.12x = 8,249,270,932.51
  5. Step 5: Solve for x
    x = 8,249,270,932.51/127,404.12
  6. Step 6: Final answer
    x = 64,748.86

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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.