Home / 127,638.18-191,457.27-34,141.50

Finding the Fourth Proportional to 127,638.18, 191,457.27 and 34,141.50

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Solution

The fourth proportional to 127,638.18, 191,457.27 and 34,141.50 is: 51,212.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,638.18 : 191,457.27 = 34,141.50 : x
  2. Step 2: Convert to fraction form
    127,638.18/191,457.27 = 34,141.50/x
  3. Step 3: Cross multiply
    127,638.18x = 191,457.27 × 34,141.50
  4. Step 4: Simplify right side
    127,638.18x = 6,536,638,383.71
  5. Step 5: Solve for x
    x = 6,536,638,383.71/127,638.18
  6. Step 6: Final answer
    x = 51,212.25

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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.