Home / 128,085.96-192,124.84-57,965.28

Finding the Fourth Proportional to 128,085.96, 192,124.84 and 57,965.28

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Solution

The fourth proportional to 128,085.96, 192,124.84 and 57,965.28 is: 86,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,085.96 : 192,124.84 = 57,965.28 : x
  2. Step 2: Convert to fraction form
    128,085.96/192,124.84 = 57,965.28/x
  3. Step 3: Cross multiply
    128,085.96x = 192,124.84 × 57,965.28
  4. Step 4: Simplify right side
    128,085.96x = 11,136,570,145.56
  5. Step 5: Solve for x
    x = 11,136,570,145.56/128,085.96
  6. Step 6: Final answer
    x = 86,946.06

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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.