Home / 113,180.84-156,237.46-76,395.04

Finding the Fourth Proportional to 113,180.84, 156,237.46 and 76,395.04

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Solution

The fourth proportional to 113,180.84, 156,237.46 and 76,395.04 is: 105,457.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,180.84 : 156,237.46 = 76,395.04 : x
  2. Step 2: Convert to fraction form
    113,180.84/156,237.46 = 76,395.04/x
  3. Step 3: Cross multiply
    113,180.84x = 156,237.46 × 76,395.04
  4. Step 4: Simplify right side
    113,180.84x = 11,935,767,006.20
  5. Step 5: Solve for x
    x = 11,935,767,006.20/113,180.84
  6. Step 6: Final answer
    x = 105,457.49

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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.