Home / 131,350.32-181,270.44-74,779.92

Finding the Fourth Proportional to 131,350.32, 181,270.44 and 74,779.92

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Solution

The fourth proportional to 131,350.32, 181,270.44 and 74,779.92 is: 103,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,350.32 : 181,270.44 = 74,779.92 : x
  2. Step 2: Convert to fraction form
    131,350.32/181,270.44 = 74,779.92/x
  3. Step 3: Cross multiply
    131,350.32x = 181,270.44 × 74,779.92
  4. Step 4: Simplify right side
    131,350.32x = 13,555,389,001.56
  5. Step 5: Solve for x
    x = 13,555,389,001.56/131,350.32
  6. Step 6: Final answer
    x = 103,200.27

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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.