Home / 139,583.52-192,623.81-75,921.30

Finding the Fourth Proportional to 139,583.52, 192,623.81 and 75,921.30

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Solution

The fourth proportional to 139,583.52, 192,623.81 and 75,921.30 is: 104,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,583.52 : 192,623.81 = 75,921.30 : x
  2. Step 2: Convert to fraction form
    139,583.52/192,623.81 = 75,921.30/x
  3. Step 3: Cross multiply
    139,583.52x = 192,623.81 × 75,921.30
  4. Step 4: Simplify right side
    139,583.52x = 14,624,249,686.55
  5. Step 5: Solve for x
    x = 14,624,249,686.55/139,583.52
  6. Step 6: Final answer
    x = 104,770.60

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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.