Home / 128,123.04-192,225.60-57,983.52

Finding the Fourth Proportional to 128,123.04, 192,225.60 and 57,983.52

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Solution

The fourth proportional to 128,123.04, 192,225.60 and 57,983.52 is: 86,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,123.04 : 192,225.60 = 57,983.52 : x
  2. Step 2: Convert to fraction form
    128,123.04/192,225.60 = 57,983.52/x
  3. Step 3: Cross multiply
    128,123.04x = 192,225.60 × 57,983.52
  4. Step 4: Simplify right side
    128,123.04x = 11,145,916,922.11
  5. Step 5: Solve for x
    x = 11,145,916,922.11/128,123.04
  6. Step 6: Final answer
    x = 86,993.85

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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.