Home / 131,295.32-181,188.06-74,705.48

Finding the Fourth Proportional to 131,295.32, 181,188.06 and 74,705.48

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Solution

The fourth proportional to 131,295.32, 181,188.06 and 74,705.48 is: 103,093.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,295.32 : 181,188.06 = 74,705.48 : x
  2. Step 2: Convert to fraction form
    131,295.32/181,188.06 = 74,705.48/x
  3. Step 3: Cross multiply
    131,295.32x = 181,188.06 × 74,705.48
  4. Step 4: Simplify right side
    131,295.32x = 13,535,740,992.57
  5. Step 5: Solve for x
    x = 13,535,740,992.57/131,295.32
  6. Step 6: Final answer
    x = 103,093.86

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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.