Home / 208,087.24-312,057.06-74,931.70

Finding the Fourth Proportional to 208,087.24, 312,057.06 and 74,931.70

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Solution

The fourth proportional to 208,087.24, 312,057.06 and 74,931.70 is: 112,370.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,087.24 : 312,057.06 = 74,931.70 : x
  2. Step 2: Convert to fraction form
    208,087.24/312,057.06 = 74,931.70/x
  3. Step 3: Cross multiply
    208,087.24x = 312,057.06 × 74,931.70
  4. Step 4: Simplify right side
    208,087.24x = 23,382,966,002.80
  5. Step 5: Solve for x
    x = 23,382,966,002.80/208,087.24
  6. Step 6: Final answer
    x = 112,370.97

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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.