Home / 125,736.45-173,518.02-72,021.44

Finding the Fourth Proportional to 125,736.45, 173,518.02 and 72,021.44

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Solution

The fourth proportional to 125,736.45, 173,518.02 and 72,021.44 is: 99,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,736.45 : 173,518.02 = 72,021.44 : x
  2. Step 2: Convert to fraction form
    125,736.45/173,518.02 = 72,021.44/x
  3. Step 3: Cross multiply
    125,736.45x = 173,518.02 × 72,021.44
  4. Step 4: Simplify right side
    125,736.45x = 12,497,016,798.76
  5. Step 5: Solve for x
    x = 12,497,016,798.76/125,736.45
  6. Step 6: Final answer
    x = 99,390.56

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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.