Home / 114,917.70-172,376.55-99,711.30

Finding the Fourth Proportional to 114,917.70, 172,376.55 and 99,711.30

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Solution

The fourth proportional to 114,917.70, 172,376.55 and 99,711.30 is: 149,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,917.70 : 172,376.55 = 99,711.30 : x
  2. Step 2: Convert to fraction form
    114,917.70/172,376.55 = 99,711.30/x
  3. Step 3: Cross multiply
    114,917.70x = 172,376.55 × 99,711.30
  4. Step 4: Simplify right side
    114,917.70x = 17,187,889,890.02
  5. Step 5: Solve for x
    x = 17,187,889,890.02/114,917.70
  6. Step 6: Final answer
    x = 149,566.95

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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.