Home / 125,715.02-188,365.14-72,451.73

Finding the Fourth Proportional to 125,715.02, 188,365.14 and 72,451.73

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Solution

The fourth proportional to 125,715.02, 188,365.14 and 72,451.73 is: 108,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,715.02 : 188,365.14 = 72,451.73 : x
  2. Step 2: Convert to fraction form
    125,715.02/188,365.14 = 72,451.73/x
  3. Step 3: Cross multiply
    125,715.02x = 188,365.14 × 72,451.73
  4. Step 4: Simplify right side
    125,715.02x = 13,647,380,264.69
  5. Step 5: Solve for x
    x = 13,647,380,264.69/125,715.02
  6. Step 6: Final answer
    x = 108,558.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.