Home / 77,118.58-106,187.09-67,504.66

Finding the Fourth Proportional to 77,118.58, 106,187.09 and 67,504.66

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Solution

The fourth proportional to 77,118.58, 106,187.09 and 67,504.66 is: 92,949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,118.58 : 106,187.09 = 67,504.66 : x
  2. Step 2: Convert to fraction form
    77,118.58/106,187.09 = 67,504.66/x
  3. Step 3: Cross multiply
    77,118.58x = 106,187.09 × 67,504.66
  4. Step 4: Simplify right side
    77,118.58x = 7,168,122,803.85
  5. Step 5: Solve for x
    x = 7,168,122,803.85/77,118.58
  6. Step 6: Final answer
    x = 92,949.36

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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.