Home / 128,947.43-193,360.14-47,867.83

Finding the Fourth Proportional to 128,947.43, 193,360.14 and 47,867.83

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Solution

The fourth proportional to 128,947.43, 193,360.14 and 47,867.83 is: 71,779.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,947.43 : 193,360.14 = 47,867.83 : x
  2. Step 2: Convert to fraction form
    128,947.43/193,360.14 = 47,867.83/x
  3. Step 3: Cross multiply
    128,947.43x = 193,360.14 × 47,867.83
  4. Step 4: Simplify right side
    128,947.43x = 9,255,729,826.90
  5. Step 5: Solve for x
    x = 9,255,729,826.90/128,947.43
  6. Step 6: Final answer
    x = 71,779.09

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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.