Home / 281,314.14-421,835.13-103,904.70

Finding the Fourth Proportional to 281,314.14, 421,835.13 and 103,904.70

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Solution

The fourth proportional to 281,314.14, 421,835.13 and 103,904.70 is: 155,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,314.14 : 421,835.13 = 103,904.70 : x
  2. Step 2: Convert to fraction form
    281,314.14/421,835.13 = 103,904.70/x
  3. Step 3: Cross multiply
    281,314.14x = 421,835.13 × 103,904.70
  4. Step 4: Simplify right side
    281,314.14x = 43,830,652,632.11
  5. Step 5: Solve for x
    x = 43,830,652,632.11/281,314.14
  6. Step 6: Final answer
    x = 155,806.79

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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.