Home / 130,111.20-179,546.40-84,090.24

Finding the Fourth Proportional to 130,111.20, 179,546.40 and 84,090.24

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Solution

The fourth proportional to 130,111.20, 179,546.40 and 84,090.24 is: 116,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,111.20 : 179,546.40 = 84,090.24 : x
  2. Step 2: Convert to fraction form
    130,111.20/179,546.40 = 84,090.24/x
  3. Step 3: Cross multiply
    130,111.20x = 179,546.40 × 84,090.24
  4. Step 4: Simplify right side
    130,111.20x = 15,098,099,867.14
  5. Step 5: Solve for x
    x = 15,098,099,867.14/130,111.20
  6. Step 6: Final answer
    x = 116,039.97

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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.