Home / 130,350.24-179,885.88-85,057.20

Finding the Fourth Proportional to 130,350.24, 179,885.88 and 85,057.20

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Solution

The fourth proportional to 130,350.24, 179,885.88 and 85,057.20 is: 117,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,350.24 : 179,885.88 = 85,057.20 : x
  2. Step 2: Convert to fraction form
    130,350.24/179,885.88 = 85,057.20/x
  3. Step 3: Cross multiply
    130,350.24x = 179,885.88 × 85,057.20
  4. Step 4: Simplify right side
    130,350.24x = 15,300,589,272.34
  5. Step 5: Solve for x
    x = 15,300,589,272.34/130,350.24
  6. Step 6: Final answer
    x = 117,380.60

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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.