Home / 185,995.98-256,653.36-105,406.25

Finding the Fourth Proportional to 185,995.98, 256,653.36 and 105,406.25

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Solution

The fourth proportional to 185,995.98, 256,653.36 and 105,406.25 is: 145,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,995.98 : 256,653.36 = 105,406.25 : x
  2. Step 2: Convert to fraction form
    185,995.98/256,653.36 = 105,406.25/x
  3. Step 3: Cross multiply
    185,995.98x = 256,653.36 × 105,406.25
  4. Step 4: Simplify right side
    185,995.98x = 27,052,866,944.23
  5. Step 5: Solve for x
    x = 27,052,866,944.23/185,995.98
  6. Step 6: Final answer
    x = 145,448.66

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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.