Home / 139,630.20-192,690.52-75,968.46

Finding the Fourth Proportional to 139,630.20, 192,690.52 and 75,968.46

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Solution

The fourth proportional to 139,630.20, 192,690.52 and 75,968.46 is: 104,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,630.20 : 192,690.52 = 75,968.46 : x
  2. Step 2: Convert to fraction form
    139,630.20/192,690.52 = 75,968.46/x
  3. Step 3: Cross multiply
    139,630.20x = 192,690.52 × 75,968.46
  4. Step 4: Simplify right side
    139,630.20x = 14,638,402,061.00
  5. Step 5: Solve for x
    x = 14,638,402,061.00/139,630.20
  6. Step 6: Final answer
    x = 104,836.93

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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.