Home / 281,148.48-421,887.84-103,669.32

Finding the Fourth Proportional to 281,148.48, 421,887.84 and 103,669.32

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Solution

The fourth proportional to 281,148.48, 421,887.84 and 103,669.32 is: 155,564.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,148.48 : 421,887.84 = 103,669.32 : x
  2. Step 2: Convert to fraction form
    281,148.48/421,887.84 = 103,669.32/x
  3. Step 3: Cross multiply
    281,148.48x = 421,887.84 × 103,669.32
  4. Step 4: Simplify right side
    281,148.48x = 43,736,825,489.07
  5. Step 5: Solve for x
    x = 43,736,825,489.07/281,148.48
  6. Step 6: Final answer
    x = 155,564.87

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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.