Home / 103,156.28-142,355.54-57,834.27

Finding the Fourth Proportional to 103,156.28, 142,355.54 and 57,834.27

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Solution

The fourth proportional to 103,156.28, 142,355.54 and 57,834.27 is: 79,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,156.28 : 142,355.54 = 57,834.27 : x
  2. Step 2: Convert to fraction form
    103,156.28/142,355.54 = 57,834.27/x
  3. Step 3: Cross multiply
    103,156.28x = 142,355.54 × 57,834.27
  4. Step 4: Simplify right side
    103,156.28x = 8,233,028,447.18
  5. Step 5: Solve for x
    x = 8,233,028,447.18/103,156.28
  6. Step 6: Final answer
    x = 79,811.22

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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.