Home / 131,097.56-180,811.85-89,729.07

Finding the Fourth Proportional to 131,097.56, 180,811.85 and 89,729.07

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Solution

The fourth proportional to 131,097.56, 180,811.85 and 89,729.07 is: 123,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,097.56 : 180,811.85 = 89,729.07 : x
  2. Step 2: Convert to fraction form
    131,097.56/180,811.85 = 89,729.07/x
  3. Step 3: Cross multiply
    131,097.56x = 180,811.85 × 89,729.07
  4. Step 4: Simplify right side
    131,097.56x = 16,224,078,919.46
  5. Step 5: Solve for x
    x = 16,224,078,919.46/131,097.56
  6. Step 6: Final answer
    x = 123,755.77

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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.