Home / 127,968.03-191,869.86-53,139.81

Finding the Fourth Proportional to 127,968.03, 191,869.86 and 53,139.81

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Solution

The fourth proportional to 127,968.03, 191,869.86 and 53,139.81 is: 79,675.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.03 : 191,869.86 = 53,139.81 : x
  2. Step 2: Convert to fraction form
    127,968.03/191,869.86 = 53,139.81/x
  3. Step 3: Cross multiply
    127,968.03x = 191,869.86 × 53,139.81
  4. Step 4: Simplify right side
    127,968.03x = 10,195,927,905.13
  5. Step 5: Solve for x
    x = 10,195,927,905.13/127,968.03
  6. Step 6: Final answer
    x = 79,675.59

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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.