Home / 185,613.61-256,146.77-100,730.68

Finding the Fourth Proportional to 185,613.61, 256,146.77 and 100,730.68

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Solution

The fourth proportional to 185,613.61, 256,146.77 and 100,730.68 is: 139,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,613.61 : 256,146.77 = 100,730.68 : x
  2. Step 2: Convert to fraction form
    185,613.61/256,146.77 = 100,730.68/x
  3. Step 3: Cross multiply
    185,613.61x = 256,146.77 × 100,730.68
  4. Step 4: Simplify right side
    185,613.61x = 25,801,838,321.90
  5. Step 5: Solve for x
    x = 25,801,838,321.90/185,613.61
  6. Step 6: Final answer
    x = 139,008.33

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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.