Home / 281,334.60-421,935.66-81,602.28

Finding the Fourth Proportional to 281,334.60, 421,935.66 and 81,602.28

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Solution

The fourth proportional to 281,334.60, 421,935.66 and 81,602.28 is: 122,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,334.60 : 421,935.66 = 81,602.28 : x
  2. Step 2: Convert to fraction form
    281,334.60/421,935.66 = 81,602.28/x
  3. Step 3: Cross multiply
    281,334.60x = 421,935.66 × 81,602.28
  4. Step 4: Simplify right side
    281,334.60x = 34,430,911,869.30
  5. Step 5: Solve for x
    x = 34,430,911,869.30/281,334.60
  6. Step 6: Final answer
    x = 122,384.21

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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.