Home / 139,226.58-192,127.14-75,563.28

Finding the Fourth Proportional to 139,226.58, 192,127.14 and 75,563.28

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Solution

The fourth proportional to 139,226.58, 192,127.14 and 75,563.28 is: 104,274.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.58 : 192,127.14 = 75,563.28 : x
  2. Step 2: Convert to fraction form
    139,226.58/192,127.14 = 75,563.28/x
  3. Step 3: Cross multiply
    139,226.58x = 192,127.14 × 75,563.28
  4. Step 4: Simplify right side
    139,226.58x = 14,517,756,875.42
  5. Step 5: Solve for x
    x = 14,517,756,875.42/139,226.58
  6. Step 6: Final answer
    x = 104,274.32

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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.