Home / 128,641.75-192,927.75-53,746.23

Finding the Fourth Proportional to 128,641.75, 192,927.75 and 53,746.23

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Solution

The fourth proportional to 128,641.75, 192,927.75 and 53,746.23 is: 80,604.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,641.75 : 192,927.75 = 53,746.23 : x
  2. Step 2: Convert to fraction form
    128,641.75/192,927.75 = 53,746.23/x
  3. Step 3: Cross multiply
    128,641.75x = 192,927.75 × 53,746.23
  4. Step 4: Simplify right side
    128,641.75x = 10,369,139,224.88
  5. Step 5: Solve for x
    x = 10,369,139,224.88/128,641.75
  6. Step 6: Final answer
    x = 80,604.77

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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.