Home / 128,150.45-192,266.79-61,595.40

Finding the Fourth Proportional to 128,150.45, 192,266.79 and 61,595.40

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Solution

The fourth proportional to 128,150.45, 192,266.79 and 61,595.40 is: 92,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,150.45 : 192,266.79 = 61,595.40 : x
  2. Step 2: Convert to fraction form
    128,150.45/192,266.79 = 61,595.40/x
  3. Step 3: Cross multiply
    128,150.45x = 192,266.79 × 61,595.40
  4. Step 4: Simplify right side
    128,150.45x = 11,842,749,836.77
  5. Step 5: Solve for x
    x = 11,842,749,836.77/128,150.45
  6. Step 6: Final answer
    x = 92,412.87

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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.