Home / 105,636.46-158,348.06-66,221.26

Finding the Fourth Proportional to 105,636.46, 158,348.06 and 66,221.26

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Solution

The fourth proportional to 105,636.46, 158,348.06 and 66,221.26 is: 99,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,636.46 : 158,348.06 = 66,221.26 : x
  2. Step 2: Convert to fraction form
    105,636.46/158,348.06 = 66,221.26/x
  3. Step 3: Cross multiply
    105,636.46x = 158,348.06 × 66,221.26
  4. Step 4: Simplify right side
    105,636.46x = 10,486,008,051.76
  5. Step 5: Solve for x
    x = 10,486,008,051.76/105,636.46
  6. Step 6: Final answer
    x = 99,265.05

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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.