Home / 130,419.40-195,629.10-60,435.40

Finding the Fourth Proportional to 130,419.40, 195,629.10 and 60,435.40

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Solution

The fourth proportional to 130,419.40, 195,629.10 and 60,435.40 is: 90,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,419.40 : 195,629.10 = 60,435.40 : x
  2. Step 2: Convert to fraction form
    130,419.40/195,629.10 = 60,435.40/x
  3. Step 3: Cross multiply
    130,419.40x = 195,629.10 × 60,435.40
  4. Step 4: Simplify right side
    130,419.40x = 11,822,922,910.14
  5. Step 5: Solve for x
    x = 11,822,922,910.14/130,419.40
  6. Step 6: Final answer
    x = 90,653.10

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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.