Home / 139,348.08-192,302.10-75,686.94

Finding the Fourth Proportional to 139,348.08, 192,302.10 and 75,686.94

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Solution

The fourth proportional to 139,348.08, 192,302.10 and 75,686.94 is: 104,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,348.08 : 192,302.10 = 75,686.94 : x
  2. Step 2: Convert to fraction form
    139,348.08/192,302.10 = 75,686.94/x
  3. Step 3: Cross multiply
    139,348.08x = 192,302.10 × 75,686.94
  4. Step 4: Simplify right side
    139,348.08x = 14,554,757,504.57
  5. Step 5: Solve for x
    x = 14,554,757,504.57/139,348.08
  6. Step 6: Final answer
    x = 104,448.93

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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.