Home / 127,811.79-191,710.65-39,065.25

Finding the Fourth Proportional to 127,811.79, 191,710.65 and 39,065.25

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Solution

The fourth proportional to 127,811.79, 191,710.65 and 39,065.25 is: 58,595.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,811.79 : 191,710.65 = 39,065.25 : x
  2. Step 2: Convert to fraction form
    127,811.79/191,710.65 = 39,065.25/x
  3. Step 3: Cross multiply
    127,811.79x = 191,710.65 × 39,065.25
  4. Step 4: Simplify right side
    127,811.79x = 7,489,224,469.91
  5. Step 5: Solve for x
    x = 7,489,224,469.91/127,811.79
  6. Step 6: Final answer
    x = 58,595.72

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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.