Home / 208,271.17-312,342.07-75,134.11

Finding the Fourth Proportional to 208,271.17, 312,342.07 and 75,134.11

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Solution

The fourth proportional to 208,271.17, 312,342.07 and 75,134.11 is: 112,677.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,271.17 : 312,342.07 = 75,134.11 : x
  2. Step 2: Convert to fraction form
    208,271.17/312,342.07 = 75,134.11/x
  3. Step 3: Cross multiply
    208,271.17x = 312,342.07 × 75,134.11
  4. Step 4: Simplify right side
    208,271.17x = 23,467,543,445.01
  5. Step 5: Solve for x
    x = 23,467,543,445.01/208,271.17
  6. Step 6: Final answer
    x = 112,677.83

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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.