Home / 185,715.45-256,290.12-100,832.49

Finding the Fourth Proportional to 185,715.45, 256,290.12 and 100,832.49

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Solution

The fourth proportional to 185,715.45, 256,290.12 and 100,832.49 is: 139,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,715.45 : 256,290.12 = 100,832.49 : x
  2. Step 2: Convert to fraction form
    185,715.45/256,290.12 = 100,832.49/x
  3. Step 3: Cross multiply
    185,715.45x = 256,290.12 × 100,832.49
  4. Step 4: Simplify right side
    185,715.45x = 25,842,370,962.00
  5. Step 5: Solve for x
    x = 25,842,370,962.00/185,715.45
  6. Step 6: Final answer
    x = 139,150.36

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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.