Home / 139,235.49-192,145.17-75,573.30

Finding the Fourth Proportional to 139,235.49, 192,145.17 and 75,573.30

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Solution

The fourth proportional to 139,235.49, 192,145.17 and 75,573.30 is: 104,291.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,235.49 : 192,145.17 = 75,573.30 : x
  2. Step 2: Convert to fraction form
    139,235.49/192,145.17 = 75,573.30/x
  3. Step 3: Cross multiply
    139,235.49x = 192,145.17 × 75,573.30
  4. Step 4: Simplify right side
    139,235.49x = 14,521,044,575.96
  5. Step 5: Solve for x
    x = 14,521,044,575.96/139,235.49
  6. Step 6: Final answer
    x = 104,291.26

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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.