Home / 103,638.46-142,914.09-97,609.90

Finding the Fourth Proportional to 103,638.46, 142,914.09 and 97,609.90

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Solution

The fourth proportional to 103,638.46, 142,914.09 and 97,609.90 is: 134,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.46 : 142,914.09 = 97,609.90 : x
  2. Step 2: Convert to fraction form
    103,638.46/142,914.09 = 97,609.90/x
  3. Step 3: Cross multiply
    103,638.46x = 142,914.09 × 97,609.90
  4. Step 4: Simplify right side
    103,638.46x = 13,949,830,033.49
  5. Step 5: Solve for x
    x = 13,949,830,033.49/103,638.46
  6. Step 6: Final answer
    x = 134,600.90

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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.