Home / 139,730.44-192,827.78-76,068.04

Finding the Fourth Proportional to 139,730.44, 192,827.78 and 76,068.04

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Solution

The fourth proportional to 139,730.44, 192,827.78 and 76,068.04 is: 104,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,730.44 : 192,827.78 = 76,068.04 : x
  2. Step 2: Convert to fraction form
    139,730.44/192,827.78 = 76,068.04/x
  3. Step 3: Cross multiply
    139,730.44x = 192,827.78 × 76,068.04
  4. Step 4: Simplify right side
    139,730.44x = 14,668,031,282.15
  5. Step 5: Solve for x
    x = 14,668,031,282.15/139,730.44
  6. Step 6: Final answer
    x = 104,973.77

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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.