Home / 185,810.16-256,418.10-100,929

Finding the Fourth Proportional to 185,810.16, 256,418.10 and 100,929

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Solution

The fourth proportional to 185,810.16, 256,418.10 and 100,929 is: 139,282.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,810.16 : 256,418.10 = 100,929 : x
  2. Step 2: Convert to fraction form
    185,810.16/256,418.10 = 100,929/x
  3. Step 3: Cross multiply
    185,810.16x = 256,418.10 × 100,929
  4. Step 4: Simplify right side
    185,810.16x = 25,880,022,414.90
  5. Step 5: Solve for x
    x = 25,880,022,414.90/185,810.16
  6. Step 6: Final answer
    x = 139,282.06

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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.