Home / 137,836.16-190,159.62-79,654.50

Finding the Fourth Proportional to 137,836.16, 190,159.62 and 79,654.50

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Solution

The fourth proportional to 137,836.16, 190,159.62 and 79,654.50 is: 109,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,836.16 : 190,159.62 = 79,654.50 : x
  2. Step 2: Convert to fraction form
    137,836.16/190,159.62 = 79,654.50/x
  3. Step 3: Cross multiply
    137,836.16x = 190,159.62 × 79,654.50
  4. Step 4: Simplify right side
    137,836.16x = 15,147,069,451.29
  5. Step 5: Solve for x
    x = 15,147,069,451.29/137,836.16
  6. Step 6: Final answer
    x = 109,891.84

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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.