Home / 135,769.88-187,444.86-105,498.02

Finding the Fourth Proportional to 135,769.88, 187,444.86 and 105,498.02

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Solution

The fourth proportional to 135,769.88, 187,444.86 and 105,498.02 is: 145,651.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,769.88 : 187,444.86 = 105,498.02 : x
  2. Step 2: Convert to fraction form
    135,769.88/187,444.86 = 105,498.02/x
  3. Step 3: Cross multiply
    135,769.88x = 187,444.86 × 105,498.02
  4. Step 4: Simplify right side
    135,769.88x = 19,775,061,589.18
  5. Step 5: Solve for x
    x = 19,775,061,589.18/135,769.88
  6. Step 6: Final answer
    x = 145,651.32

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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.