Home / 130,127.80-195,422.10-100,617.40

Finding the Fourth Proportional to 130,127.80, 195,422.10 and 100,617.40

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Solution

The fourth proportional to 130,127.80, 195,422.10 and 100,617.40 is: 151,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,127.80 : 195,422.10 = 100,617.40 : x
  2. Step 2: Convert to fraction form
    130,127.80/195,422.10 = 100,617.40/x
  3. Step 3: Cross multiply
    130,127.80x = 195,422.10 × 100,617.40
  4. Step 4: Simplify right side
    130,127.80x = 19,662,863,604.54
  5. Step 5: Solve for x
    x = 19,662,863,604.54/130,127.80
  6. Step 6: Final answer
    x = 151,104.25

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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.