Home / 129,941.04-194,989.32-74,575.92

Finding the Fourth Proportional to 129,941.04, 194,989.32 and 74,575.92

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Solution

The fourth proportional to 129,941.04, 194,989.32 and 74,575.92 is: 111,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,941.04 : 194,989.32 = 74,575.92 : x
  2. Step 2: Convert to fraction form
    129,941.04/194,989.32 = 74,575.92/x
  3. Step 3: Cross multiply
    129,941.04x = 194,989.32 × 74,575.92
  4. Step 4: Simplify right side
    129,941.04x = 14,541,507,929.17
  5. Step 5: Solve for x
    x = 14,541,507,929.17/129,941.04
  6. Step 6: Final answer
    x = 111,908.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.