Home / 127,828.10-191,740.35-57,707.30

Finding the Fourth Proportional to 127,828.10, 191,740.35 and 57,707.30

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Solution

The fourth proportional to 127,828.10, 191,740.35 and 57,707.30 is: 86,560.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,828.10 : 191,740.35 = 57,707.30 : x
  2. Step 2: Convert to fraction form
    127,828.10/191,740.35 = 57,707.30/x
  3. Step 3: Cross multiply
    127,828.10x = 191,740.35 × 57,707.30
  4. Step 4: Simplify right side
    127,828.10x = 11,064,817,899.56
  5. Step 5: Solve for x
    x = 11,064,817,899.56/127,828.10
  6. Step 6: Final answer
    x = 86,560.14

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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.