Home / 139,252.85-192,168.75-75,590.63

Finding the Fourth Proportional to 139,252.85, 192,168.75 and 75,590.63

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Solution

The fourth proportional to 139,252.85, 192,168.75 and 75,590.63 is: 104,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,252.85 : 192,168.75 = 75,590.63 : x
  2. Step 2: Convert to fraction form
    139,252.85/192,168.75 = 75,590.63/x
  3. Step 3: Cross multiply
    139,252.85x = 192,168.75 × 75,590.63
  4. Step 4: Simplify right side
    139,252.85x = 14,526,156,878.81
  5. Step 5: Solve for x
    x = 14,526,156,878.81/139,252.85
  6. Step 6: Final answer
    x = 104,314.97

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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.