Home / 103,450.33-142,757.40-63,231.40

Finding the Fourth Proportional to 103,450.33, 142,757.40 and 63,231.40

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Solution

The fourth proportional to 103,450.33, 142,757.40 and 63,231.40 is: 87,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,450.33 : 142,757.40 = 63,231.40 : x
  2. Step 2: Convert to fraction form
    103,450.33/142,757.40 = 63,231.40/x
  3. Step 3: Cross multiply
    103,450.33x = 142,757.40 × 63,231.40
  4. Step 4: Simplify right side
    103,450.33x = 9,026,750,262.36
  5. Step 5: Solve for x
    x = 9,026,750,262.36/103,450.33
  6. Step 6: Final answer
    x = 87,256.85

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1.5x scale

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.