Home / 139,628.16-192,687.84-75,966.48

Finding the Fourth Proportional to 139,628.16, 192,687.84 and 75,966.48

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Solution

The fourth proportional to 139,628.16, 192,687.84 and 75,966.48 is: 104,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,628.16 : 192,687.84 = 75,966.48 : x
  2. Step 2: Convert to fraction form
    139,628.16/192,687.84 = 75,966.48/x
  3. Step 3: Cross multiply
    139,628.16x = 192,687.84 × 75,966.48
  4. Step 4: Simplify right side
    139,628.16x = 14,637,816,943.60
  5. Step 5: Solve for x
    x = 14,637,816,943.60/139,628.16
  6. Step 6: Final answer
    x = 104,834.28

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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.