Home / 163,396.07-245,304-125,979.91

Finding the Fourth Proportional to 163,396.07, 245,304 and 125,979.91

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Solution

The fourth proportional to 163,396.07, 245,304 and 125,979.91 is: 189,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,396.07 : 245,304 = 125,979.91 : x
  2. Step 2: Convert to fraction form
    163,396.07/245,304 = 125,979.91/x
  3. Step 3: Cross multiply
    163,396.07x = 245,304 × 125,979.91
  4. Step 4: Simplify right side
    163,396.07x = 30,903,375,842.64
  5. Step 5: Solve for x
    x = 30,903,375,842.64/163,396.07
  6. Step 6: Final answer
    x = 189,131.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.