Home / 208,006.24-312,042.08-89,711.20

Finding the Fourth Proportional to 208,006.24, 312,042.08 and 89,711.20

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Solution

The fourth proportional to 208,006.24, 312,042.08 and 89,711.20 is: 134,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,006.24 : 312,042.08 = 89,711.20 : x
  2. Step 2: Convert to fraction form
    208,006.24/312,042.08 = 89,711.20/x
  3. Step 3: Cross multiply
    208,006.24x = 312,042.08 × 89,711.20
  4. Step 4: Simplify right side
    208,006.24x = 27,993,669,447.30
  5. Step 5: Solve for x
    x = 27,993,669,447.30/208,006.24
  6. Step 6: Final answer
    x = 134,580.91

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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.