Home / 103,372.06-142,706.58-88,425.28

Finding the Fourth Proportional to 103,372.06, 142,706.58 and 88,425.28

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Solution

The fourth proportional to 103,372.06, 142,706.58 and 88,425.28 is: 122,072.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,372.06 : 142,706.58 = 88,425.28 : x
  2. Step 2: Convert to fraction form
    103,372.06/142,706.58 = 88,425.28/x
  3. Step 3: Cross multiply
    103,372.06x = 142,706.58 × 88,425.28
  4. Step 4: Simplify right side
    103,372.06x = 12,618,869,294.34
  5. Step 5: Solve for x
    x = 12,618,869,294.34/103,372.06
  6. Step 6: Final answer
    x = 122,072.34

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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.