Home / 128,572.14-192,870.90-44,321.21

Finding the Fourth Proportional to 128,572.14, 192,870.90 and 44,321.21

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Solution

The fourth proportional to 128,572.14, 192,870.90 and 44,321.21 is: 66,486.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,572.14 : 192,870.90 = 44,321.21 : x
  2. Step 2: Convert to fraction form
    128,572.14/192,870.90 = 44,321.21/x
  3. Step 3: Cross multiply
    128,572.14x = 192,870.90 × 44,321.21
  4. Step 4: Simplify right side
    128,572.14x = 8,548,271,661.79
  5. Step 5: Solve for x
    x = 8,548,271,661.79/128,572.14
  6. Step 6: Final answer
    x = 66,486.19

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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.