Home / 130,761.29-195,954.80-74,485.19

Finding the Fourth Proportional to 130,761.29, 195,954.80 and 74,485.19

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Solution

The fourth proportional to 130,761.29, 195,954.80 and 74,485.19 is: 111,621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,761.29 : 195,954.80 = 74,485.19 : x
  2. Step 2: Convert to fraction form
    130,761.29/195,954.80 = 74,485.19/x
  3. Step 3: Cross multiply
    130,761.29x = 195,954.80 × 74,485.19
  4. Step 4: Simplify right side
    130,761.29x = 14,595,729,157.21
  5. Step 5: Solve for x
    x = 14,595,729,157.21/130,761.29
  6. Step 6: Final answer
    x = 111,621.18

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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.