Home / 125,005.20-187,216.20-122,499.60

Finding the Fourth Proportional to 125,005.20, 187,216.20 and 122,499.60

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Solution

The fourth proportional to 125,005.20, 187,216.20 and 122,499.60 is: 183,463.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,005.20 : 187,216.20 = 122,499.60 : x
  2. Step 2: Convert to fraction form
    125,005.20/187,216.20 = 122,499.60/x
  3. Step 3: Cross multiply
    125,005.20x = 187,216.20 × 122,499.60
  4. Step 4: Simplify right side
    125,005.20x = 22,933,909,613.52
  5. Step 5: Solve for x
    x = 22,933,909,613.52/125,005.20
  6. Step 6: Final answer
    x = 183,463.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.