Home / 281,186.04-421,943.91-103,816.71

Finding the Fourth Proportional to 281,186.04, 421,943.91 and 103,816.71

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Solution

The fourth proportional to 281,186.04, 421,943.91 and 103,816.71 is: 155,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,186.04 : 421,943.91 = 103,816.71 : x
  2. Step 2: Convert to fraction form
    281,186.04/421,943.91 = 103,816.71/x
  3. Step 3: Cross multiply
    281,186.04x = 421,943.91 × 103,816.71
  4. Step 4: Simplify right side
    281,186.04x = 43,804,828,540.74
  5. Step 5: Solve for x
    x = 43,804,828,540.74/281,186.04
  6. Step 6: Final answer
    x = 155,785.93

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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.