Home / 127,905.20-191,990.87-94,209.26

Finding the Fourth Proportional to 127,905.20, 191,990.87 and 94,209.26

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Solution

The fourth proportional to 127,905.20, 191,990.87 and 94,209.26 is: 141,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,905.20 : 191,990.87 = 94,209.26 : x
  2. Step 2: Convert to fraction form
    127,905.20/191,990.87 = 94,209.26/x
  3. Step 3: Cross multiply
    127,905.20x = 191,990.87 × 94,209.26
  4. Step 4: Simplify right side
    127,905.20x = 18,087,316,358.46
  5. Step 5: Solve for x
    x = 18,087,316,358.46/127,905.20
  6. Step 6: Final answer
    x = 141,411.90

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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.