Home / 208,089.72-312,058.04-74,934.23

Finding the Fourth Proportional to 208,089.72, 312,058.04 and 74,934.23

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Solution

The fourth proportional to 208,089.72, 312,058.04 and 74,934.23 is: 112,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,089.72 : 312,058.04 = 74,934.23 : x
  2. Step 2: Convert to fraction form
    208,089.72/312,058.04 = 74,934.23/x
  3. Step 3: Cross multiply
    208,089.72x = 312,058.04 × 74,934.23
  4. Step 4: Simplify right side
    208,089.72x = 23,383,827,007.75
  5. Step 5: Solve for x
    x = 23,383,827,007.75/208,089.72
  6. Step 6: Final answer
    x = 112,373.77

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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.