Home / 131,018.54-180,806.19-74,433.02

Finding the Fourth Proportional to 131,018.54, 180,806.19 and 74,433.02

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Solution

The fourth proportional to 131,018.54, 180,806.19 and 74,433.02 is: 102,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,018.54 : 180,806.19 = 74,433.02 : x
  2. Step 2: Convert to fraction form
    131,018.54/180,806.19 = 74,433.02/x
  3. Step 3: Cross multiply
    131,018.54x = 180,806.19 × 74,433.02
  4. Step 4: Simplify right side
    131,018.54x = 13,457,950,756.39
  5. Step 5: Solve for x
    x = 13,457,950,756.39/131,018.54
  6. Step 6: Final answer
    x = 102,717.91

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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.