Home / 185,760.51-256,347.21-100,878.18

Finding the Fourth Proportional to 185,760.51, 256,347.21 and 100,878.18

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Solution

The fourth proportional to 185,760.51, 256,347.21 and 100,878.18 is: 139,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,760.51 : 256,347.21 = 100,878.18 : x
  2. Step 2: Convert to fraction form
    185,760.51/256,347.21 = 100,878.18/x
  3. Step 3: Cross multiply
    185,760.51x = 256,347.21 × 100,878.18
  4. Step 4: Simplify right side
    185,760.51x = 25,859,839,992.88
  5. Step 5: Solve for x
    x = 25,859,839,992.88/185,760.51
  6. Step 6: Final answer
    x = 139,210.64

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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.