Home / 130,010.58-179,241.12-103,241.70

Finding the Fourth Proportional to 130,010.58, 179,241.12 and 103,241.70

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Solution

The fourth proportional to 130,010.58, 179,241.12 and 103,241.70 is: 142,335.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,010.58 : 179,241.12 = 103,241.70 : x
  2. Step 2: Convert to fraction form
    130,010.58/179,241.12 = 103,241.70/x
  3. Step 3: Cross multiply
    130,010.58x = 179,241.12 × 103,241.70
  4. Step 4: Simplify right side
    130,010.58x = 18,505,157,938.70
  5. Step 5: Solve for x
    x = 18,505,157,938.70/130,010.58
  6. Step 6: Final answer
    x = 142,335.78

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1.5x scale

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.