Home / 100,971.24-139,340.88-58,554.96

Finding the Fourth Proportional to 100,971.24, 139,340.88 and 58,554.96

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Solution

The fourth proportional to 100,971.24, 139,340.88 and 58,554.96 is: 80,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,971.24 : 139,340.88 = 58,554.96 : x
  2. Step 2: Convert to fraction form
    100,971.24/139,340.88 = 58,554.96/x
  3. Step 3: Cross multiply
    100,971.24x = 139,340.88 × 58,554.96
  4. Step 4: Simplify right side
    100,971.24x = 8,159,099,654.76
  5. Step 5: Solve for x
    x = 8,159,099,654.76/100,971.24
  6. Step 6: Final answer
    x = 80,806.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.