Home / 103,961.28-143,450.65-58,637.28

Finding the Fourth Proportional to 103,961.28, 143,450.65 and 58,637.28

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Solution

The fourth proportional to 103,961.28, 143,450.65 and 58,637.28 is: 80,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,961.28 : 143,450.65 = 58,637.28 : x
  2. Step 2: Convert to fraction form
    103,961.28/143,450.65 = 58,637.28/x
  3. Step 3: Cross multiply
    103,961.28x = 143,450.65 × 58,637.28
  4. Step 4: Simplify right side
    103,961.28x = 8,411,555,930.23
  5. Step 5: Solve for x
    x = 8,411,555,930.23/103,961.28
  6. Step 6: Final answer
    x = 80,910.47

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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.