Home / 130,419.82-179,966.90-103,627.18

Finding the Fourth Proportional to 130,419.82, 179,966.90 and 103,627.18

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Solution

The fourth proportional to 130,419.82, 179,966.90 and 103,627.18 is: 142,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,419.82 : 179,966.90 = 103,627.18 : x
  2. Step 2: Convert to fraction form
    130,419.82/179,966.90 = 103,627.18/x
  3. Step 3: Cross multiply
    130,419.82x = 179,966.90 × 103,627.18
  4. Step 4: Simplify right side
    130,419.82x = 18,649,462,340.34
  5. Step 5: Solve for x
    x = 18,649,462,340.34/130,419.82
  6. Step 6: Final answer
    x = 142,995.61

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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.