Home / 130,947.20-196,268.40-74,826.64

Finding the Fourth Proportional to 130,947.20, 196,268.40 and 74,826.64

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Solution

The fourth proportional to 130,947.20, 196,268.40 and 74,826.64 is: 112,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,947.20 : 196,268.40 = 74,826.64 : x
  2. Step 2: Convert to fraction form
    130,947.20/196,268.40 = 74,826.64/x
  3. Step 3: Cross multiply
    130,947.20x = 196,268.40 × 74,826.64
  4. Step 4: Simplify right side
    130,947.20x = 14,686,104,910.18
  5. Step 5: Solve for x
    x = 14,686,104,910.18/130,947.20
  6. Step 6: Final answer
    x = 112,152.87

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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.