Home / 128,337.63-177,022.50-82,324.46

Finding the Fourth Proportional to 128,337.63, 177,022.50 and 82,324.46

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Solution

The fourth proportional to 128,337.63, 177,022.50 and 82,324.46 is: 113,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,337.63 : 177,022.50 = 82,324.46 : x
  2. Step 2: Convert to fraction form
    128,337.63/177,022.50 = 82,324.46/x
  3. Step 3: Cross multiply
    128,337.63x = 177,022.50 × 82,324.46
  4. Step 4: Simplify right side
    128,337.63x = 14,573,280,835.24
  5. Step 5: Solve for x
    x = 14,573,280,835.24/128,337.63
  6. Step 6: Final answer
    x = 113,554.23

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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.