Home / 185,613.12-256,146.08-100,730.18

Finding the Fourth Proportional to 185,613.12, 256,146.08 and 100,730.18

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Solution

The fourth proportional to 185,613.12, 256,146.08 and 100,730.18 is: 139,007.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,613.12 : 256,146.08 = 100,730.18 : x
  2. Step 2: Convert to fraction form
    185,613.12/256,146.08 = 100,730.18/x
  3. Step 3: Cross multiply
    185,613.12x = 256,146.08 × 100,730.18
  4. Step 4: Simplify right side
    185,613.12x = 25,801,640,744.69
  5. Step 5: Solve for x
    x = 25,801,640,744.69/185,613.12
  6. Step 6: Final answer
    x = 139,007.63

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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.