Home / 208,720.85-312,663.92-96,247.08

Finding the Fourth Proportional to 208,720.85, 312,663.92 and 96,247.08

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Solution

The fourth proportional to 208,720.85, 312,663.92 and 96,247.08 is: 144,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,720.85 : 312,663.92 = 96,247.08 : x
  2. Step 2: Convert to fraction form
    208,720.85/312,663.92 = 96,247.08/x
  3. Step 3: Cross multiply
    208,720.85x = 312,663.92 × 96,247.08
  4. Step 4: Simplify right side
    208,720.85x = 30,092,988,840.12
  5. Step 5: Solve for x
    x = 30,092,988,840.12/208,720.85
  6. Step 6: Final answer
    x = 144,178.17

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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.