Home / 133,411.83-199,797.04-76,312.68

Finding the Fourth Proportional to 133,411.83, 199,797.04 and 76,312.68

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Solution

The fourth proportional to 133,411.83, 199,797.04 and 76,312.68 is: 114,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,411.83 : 199,797.04 = 76,312.68 : x
  2. Step 2: Convert to fraction form
    133,411.83/199,797.04 = 76,312.68/x
  3. Step 3: Cross multiply
    133,411.83x = 199,797.04 × 76,312.68
  4. Step 4: Simplify right side
    133,411.83x = 15,247,047,578.47
  5. Step 5: Solve for x
    x = 15,247,047,578.47/133,411.83
  6. Step 6: Final answer
    x = 114,285.57

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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.