Home / 185,622.39-256,159.53-100,739.43

Finding the Fourth Proportional to 185,622.39, 256,159.53 and 100,739.43

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Solution

The fourth proportional to 185,622.39, 256,159.53 and 100,739.43 is: 139,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,622.39 : 256,159.53 = 100,739.43 : x
  2. Step 2: Convert to fraction form
    185,622.39/256,159.53 = 100,739.43/x
  3. Step 3: Cross multiply
    185,622.39x = 256,159.53 × 100,739.43
  4. Step 4: Simplify right side
    185,622.39x = 25,805,365,041.27
  5. Step 5: Solve for x
    x = 25,805,365,041.27/185,622.39
  6. Step 6: Final answer
    x = 139,020.76

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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.