Home / 130,124.27-179,535.08-81,731.43

Finding the Fourth Proportional to 130,124.27, 179,535.08 and 81,731.43

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Solution

The fourth proportional to 130,124.27, 179,535.08 and 81,731.43 is: 112,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,124.27 : 179,535.08 = 81,731.43 : x
  2. Step 2: Convert to fraction form
    130,124.27/179,535.08 = 81,731.43/x
  3. Step 3: Cross multiply
    130,124.27x = 179,535.08 × 81,731.43
  4. Step 4: Simplify right side
    130,124.27x = 14,673,659,027.89
  5. Step 5: Solve for x
    x = 14,673,659,027.89/130,124.27
  6. Step 6: Final answer
    x = 112,766.50

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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.