Home / 139,349.40-192,302.52-75,687.12

Finding the Fourth Proportional to 139,349.40, 192,302.52 and 75,687.12

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Solution

The fourth proportional to 139,349.40, 192,302.52 and 75,687.12 is: 104,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.40 : 192,302.52 = 75,687.12 : x
  2. Step 2: Convert to fraction form
    139,349.40/192,302.52 = 75,687.12/x
  3. Step 3: Cross multiply
    139,349.40x = 192,302.52 × 75,687.12
  4. Step 4: Simplify right side
    139,349.40x = 14,554,823,907.54
  5. Step 5: Solve for x
    x = 14,554,823,907.54/139,349.40
  6. Step 6: Final answer
    x = 104,448.41

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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.