Home / 185,658.03-256,209.21-100,775.70

Finding the Fourth Proportional to 185,658.03, 256,209.21 and 100,775.70

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Solution

The fourth proportional to 185,658.03, 256,209.21 and 100,775.70 is: 139,071.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,658.03 : 256,209.21 = 100,775.70 : x
  2. Step 2: Convert to fraction form
    185,658.03/256,209.21 = 100,775.70/x
  3. Step 3: Cross multiply
    185,658.03x = 256,209.21 × 100,775.70
  4. Step 4: Simplify right side
    185,658.03x = 25,819,662,484.20
  5. Step 5: Solve for x
    x = 25,819,662,484.20/185,658.03
  6. Step 6: Final answer
    x = 139,071.08

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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.