Home / 105,680.28-145,835.40-57,932.61

Finding the Fourth Proportional to 105,680.28, 145,835.40 and 57,932.61

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Solution

The fourth proportional to 105,680.28, 145,835.40 and 57,932.61 is: 79,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,680.28 : 145,835.40 = 57,932.61 : x
  2. Step 2: Convert to fraction form
    105,680.28/145,835.40 = 57,932.61/x
  3. Step 3: Cross multiply
    105,680.28x = 145,835.40 × 57,932.61
  4. Step 4: Simplify right side
    105,680.28x = 8,448,624,623.22
  5. Step 5: Solve for x
    x = 8,448,624,623.22/105,680.28
  6. Step 6: Final answer
    x = 79,945.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.