Home / 281,054.49-421,587.23-103,470.09

Finding the Fourth Proportional to 281,054.49, 421,587.23 and 103,470.09

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Solution

The fourth proportional to 281,054.49, 421,587.23 and 103,470.09 is: 155,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,054.49 : 421,587.23 = 103,470.09 : x
  2. Step 2: Convert to fraction form
    281,054.49/421,587.23 = 103,470.09/x
  3. Step 3: Cross multiply
    281,054.49x = 421,587.23 × 103,470.09
  4. Step 4: Simplify right side
    281,054.49x = 43,621,668,113.60
  5. Step 5: Solve for x
    x = 43,621,668,113.60/281,054.49
  6. Step 6: Final answer
    x = 155,207.16

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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.