Home / 130,243.80-195,365.70-77,755.80

Finding the Fourth Proportional to 130,243.80, 195,365.70 and 77,755.80

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Solution

The fourth proportional to 130,243.80, 195,365.70 and 77,755.80 is: 116,633.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,243.80 : 195,365.70 = 77,755.80 : x
  2. Step 2: Convert to fraction form
    130,243.80/195,365.70 = 77,755.80/x
  3. Step 3: Cross multiply
    130,243.80x = 195,365.70 × 77,755.80
  4. Step 4: Simplify right side
    130,243.80x = 15,190,816,296.06
  5. Step 5: Solve for x
    x = 15,190,816,296.06/130,243.80
  6. Step 6: Final answer
    x = 116,633.70

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1.5x scale

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.