Home / 281,126.04-421,732.98-91,541.67

Finding the Fourth Proportional to 281,126.04, 421,732.98 and 91,541.67

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Solution

The fourth proportional to 281,126.04, 421,732.98 and 91,541.67 is: 137,326.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,126.04 : 421,732.98 = 91,541.67 : x
  2. Step 2: Convert to fraction form
    281,126.04/421,732.98 = 91,541.67/x
  3. Step 3: Cross multiply
    281,126.04x = 421,732.98 × 91,541.67
  4. Step 4: Simplify right side
    281,126.04x = 38,606,141,283.28
  5. Step 5: Solve for x
    x = 38,606,141,283.28/281,126.04
  6. Step 6: Final answer
    x = 137,326.81

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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.