Home / 131,579.56-181,575.30-75,009.16

Finding the Fourth Proportional to 131,579.56, 181,575.30 and 75,009.16

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Solution

The fourth proportional to 131,579.56, 181,575.30 and 75,009.16 is: 103,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,579.56 : 181,575.30 = 75,009.16 : x
  2. Step 2: Convert to fraction form
    131,579.56/181,575.30 = 75,009.16/x
  3. Step 3: Cross multiply
    131,579.56x = 181,575.30 × 75,009.16
  4. Step 4: Simplify right side
    131,579.56x = 13,619,810,729.75
  5. Step 5: Solve for x
    x = 13,619,810,729.75/131,579.56
  6. Step 6: Final answer
    x = 103,510.08

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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.