Home / 139,911.47-193,079.19-76,250.63

Finding the Fourth Proportional to 139,911.47, 193,079.19 and 76,250.63

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Solution

The fourth proportional to 139,911.47, 193,079.19 and 76,250.63 is: 105,226.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,911.47 : 193,079.19 = 76,250.63 : x
  2. Step 2: Convert to fraction form
    139,911.47/193,079.19 = 76,250.63/x
  3. Step 3: Cross multiply
    139,911.47x = 193,079.19 × 76,250.63
  4. Step 4: Simplify right side
    139,911.47x = 14,722,410,646.03
  5. Step 5: Solve for x
    x = 14,722,410,646.03/139,911.47
  6. Step 6: Final answer
    x = 105,226.62

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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.