Home / 118,729.22-177,938.76-90,546.08

Finding the Fourth Proportional to 118,729.22, 177,938.76 and 90,546.08

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Solution

The fourth proportional to 118,729.22, 177,938.76 and 90,546.08 is: 135,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,729.22 : 177,938.76 = 90,546.08 : x
  2. Step 2: Convert to fraction form
    118,729.22/177,938.76 = 90,546.08/x
  3. Step 3: Cross multiply
    118,729.22x = 177,938.76 × 90,546.08
  4. Step 4: Simplify right side
    118,729.22x = 16,111,657,198.06
  5. Step 5: Solve for x
    x = 16,111,657,198.06/118,729.22
  6. Step 6: Final answer
    x = 135,700.86

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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.