Home / 127,757.94-176,116.92-81,812.72

Finding the Fourth Proportional to 127,757.94, 176,116.92 and 81,812.72

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Solution

The fourth proportional to 127,757.94, 176,116.92 and 81,812.72 is: 112,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,757.94 : 176,116.92 = 81,812.72 : x
  2. Step 2: Convert to fraction form
    127,757.94/176,116.92 = 81,812.72/x
  3. Step 3: Cross multiply
    127,757.94x = 176,116.92 × 81,812.72
  4. Step 4: Simplify right side
    127,757.94x = 14,408,604,263.22
  5. Step 5: Solve for x
    x = 14,408,604,263.22/127,757.94
  6. Step 6: Final answer
    x = 112,780.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.