Home / 185,613.84-256,145.76-100,729.08

Finding the Fourth Proportional to 185,613.84, 256,145.76 and 100,729.08

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Solution

The fourth proportional to 185,613.84, 256,145.76 and 100,729.08 is: 139,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,613.84 : 256,145.76 = 100,729.08 : x
  2. Step 2: Convert to fraction form
    185,613.84/256,145.76 = 100,729.08/x
  3. Step 3: Cross multiply
    185,613.84x = 256,145.76 × 100,729.08
  4. Step 4: Simplify right side
    185,613.84x = 25,801,326,750.70
  5. Step 5: Solve for x
    x = 25,801,326,750.70/185,613.84
  6. Step 6: Final answer
    x = 139,005.40

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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.