Home / 185,721.99-256,282.34-105,131.04

Finding the Fourth Proportional to 185,721.99, 256,282.34 and 105,131.04

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Solution

The fourth proportional to 185,721.99, 256,282.34 and 105,131.04 is: 145,072.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,721.99 : 256,282.34 = 105,131.04 : x
  2. Step 2: Convert to fraction form
    185,721.99/256,282.34 = 105,131.04/x
  3. Step 3: Cross multiply
    185,721.99x = 256,282.34 × 105,131.04
  4. Step 4: Simplify right side
    185,721.99x = 26,943,228,937.83
  5. Step 5: Solve for x
    x = 26,943,228,937.83/185,721.99
  6. Step 6: Final answer
    x = 145,072.91

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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.