Home / 285,979.03-428,703.67-105,964.16

Finding the Fourth Proportional to 285,979.03, 428,703.67 and 105,964.16

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Solution

The fourth proportional to 285,979.03, 428,703.67 and 105,964.16 is: 158,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,979.03 : 428,703.67 = 105,964.16 : x
  2. Step 2: Convert to fraction form
    285,979.03/428,703.67 = 105,964.16/x
  3. Step 3: Cross multiply
    285,979.03x = 428,703.67 × 105,964.16
  4. Step 4: Simplify right side
    285,979.03x = 45,427,221,607.13
  5. Step 5: Solve for x
    x = 45,427,221,607.13/285,979.03
  6. Step 6: Final answer
    x = 158,848.09

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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.