Home / 131,726.87-197,590.82-31,886.90

Finding the Fourth Proportional to 131,726.87, 197,590.82 and 31,886.90

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Solution

The fourth proportional to 131,726.87, 197,590.82 and 31,886.90 is: 47,830.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,726.87 : 197,590.82 = 31,886.90 : x
  2. Step 2: Convert to fraction form
    131,726.87/197,590.82 = 31,886.90/x
  3. Step 3: Cross multiply
    131,726.87x = 197,590.82 × 31,886.90
  4. Step 4: Simplify right side
    131,726.87x = 6,300,557,570.87
  5. Step 5: Solve for x
    x = 6,300,557,570.87/131,726.87
  6. Step 6: Final answer
    x = 47,830.47

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1.5x scale

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.