Home / 131,464.32-181,508.34-77,766.58

Finding the Fourth Proportional to 131,464.32, 181,508.34 and 77,766.58

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Solution

The fourth proportional to 131,464.32, 181,508.34 and 77,766.58 is: 107,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,464.32 : 181,508.34 = 77,766.58 : x
  2. Step 2: Convert to fraction form
    131,464.32/181,508.34 = 77,766.58/x
  3. Step 3: Cross multiply
    131,464.32x = 181,508.34 × 77,766.58
  4. Step 4: Simplify right side
    131,464.32x = 14,115,282,843.28
  5. Step 5: Solve for x
    x = 14,115,282,843.28/131,464.32
  6. Step 6: Final answer
    x = 107,369.69

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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.