Home / 130,755.48-180,481.23-77,057.70

Finding the Fourth Proportional to 130,755.48, 180,481.23 and 77,057.70

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Solution

The fourth proportional to 130,755.48, 180,481.23 and 77,057.70 is: 106,362.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,755.48 : 180,481.23 = 77,057.70 : x
  2. Step 2: Convert to fraction form
    130,755.48/180,481.23 = 77,057.70/x
  3. Step 3: Cross multiply
    130,755.48x = 180,481.23 × 77,057.70
  4. Step 4: Simplify right side
    130,755.48x = 13,907,468,476.97
  5. Step 5: Solve for x
    x = 13,907,468,476.97/130,755.48
  6. Step 6: Final answer
    x = 106,362.41

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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.