Home / 281,124.45-421,686.16-91,584.59

Finding the Fourth Proportional to 281,124.45, 421,686.16 and 91,584.59

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Solution

The fourth proportional to 281,124.45, 421,686.16 and 91,584.59 is: 137,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,124.45 : 421,686.16 = 91,584.59 : x
  2. Step 2: Convert to fraction form
    281,124.45/421,686.16 = 91,584.59/x
  3. Step 3: Cross multiply
    281,124.45x = 421,686.16 × 91,584.59
  4. Step 4: Simplify right side
    281,124.45x = 38,619,953,614.35
  5. Step 5: Solve for x
    x = 38,619,953,614.35/281,124.45
  6. Step 6: Final answer
    x = 137,376.72

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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.