Home / 130,555.20-196,250.40-121,310.40

Finding the Fourth Proportional to 130,555.20, 196,250.40 and 121,310.40

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Solution

The fourth proportional to 130,555.20, 196,250.40 and 121,310.40 is: 182,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,555.20 : 196,250.40 = 121,310.40 : x
  2. Step 2: Convert to fraction form
    130,555.20/196,250.40 = 121,310.40/x
  3. Step 3: Cross multiply
    130,555.20x = 196,250.40 × 121,310.40
  4. Step 4: Simplify right side
    130,555.20x = 23,807,214,524.16
  5. Step 5: Solve for x
    x = 23,807,214,524.16/130,555.20
  6. Step 6: Final answer
    x = 182,353.63

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1.5x scale

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.