Home / 185,647.40-256,186.55-100,762.64

Finding the Fourth Proportional to 185,647.40, 256,186.55 and 100,762.64

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Solution

The fourth proportional to 185,647.40, 256,186.55 and 100,762.64 is: 139,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,647.40 : 256,186.55 = 100,762.64 : x
  2. Step 2: Convert to fraction form
    185,647.40/256,186.55 = 100,762.64/x
  3. Step 3: Cross multiply
    185,647.40x = 256,186.55 × 100,762.64
  4. Step 4: Simplify right side
    185,647.40x = 25,814,031,325.75
  5. Step 5: Solve for x
    x = 25,814,031,325.75/185,647.40
  6. Step 6: Final answer
    x = 139,048.71

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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.