Home / 152,007.49-209,791.19-87,475.39

Finding the Fourth Proportional to 152,007.49, 209,791.19 and 87,475.39

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Solution

The fourth proportional to 152,007.49, 209,791.19 and 87,475.39 is: 120,728.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,007.49 : 209,791.19 = 87,475.39 : x
  2. Step 2: Convert to fraction form
    152,007.49/209,791.19 = 87,475.39/x
  3. Step 3: Cross multiply
    152,007.49x = 209,791.19 × 87,475.39
  4. Step 4: Simplify right side
    152,007.49x = 18,351,565,726.44
  5. Step 5: Solve for x
    x = 18,351,565,726.44/152,007.49
  6. Step 6: Final answer
    x = 120,728.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.