Home / 139,388.38-192,358.29-75,726.23

Finding the Fourth Proportional to 139,388.38, 192,358.29 and 75,726.23

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Solution

The fourth proportional to 139,388.38, 192,358.29 and 75,726.23 is: 104,503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,388.38 : 192,358.29 = 75,726.23 : x
  2. Step 2: Convert to fraction form
    139,388.38/192,358.29 = 75,726.23/x
  3. Step 3: Cross multiply
    139,388.38x = 192,358.29 × 75,726.23
  4. Step 4: Simplify right side
    139,388.38x = 14,566,567,433.13
  5. Step 5: Solve for x
    x = 14,566,567,433.13/139,388.38
  6. Step 6: Final answer
    x = 104,503.46

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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.