Home / 131,150.98-181,003.72-74,570.86

Finding the Fourth Proportional to 131,150.98, 181,003.72 and 74,570.86

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Solution

The fourth proportional to 131,150.98, 181,003.72 and 74,570.86 is: 102,916.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,150.98 : 181,003.72 = 74,570.86 : x
  2. Step 2: Convert to fraction form
    131,150.98/181,003.72 = 74,570.86/x
  3. Step 3: Cross multiply
    131,150.98x = 181,003.72 × 74,570.86
  4. Step 4: Simplify right side
    131,150.98x = 13,497,603,063.60
  5. Step 5: Solve for x
    x = 13,497,603,063.60/131,150.98
  6. Step 6: Final answer
    x = 102,916.52

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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.