Home / 124,766.25-172,178.64-68,178.84

Finding the Fourth Proportional to 124,766.25, 172,178.64 and 68,178.84

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Solution

The fourth proportional to 124,766.25, 172,178.64 and 68,178.84 is: 94,087.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,766.25 : 172,178.64 = 68,178.84 : x
  2. Step 2: Convert to fraction form
    124,766.25/172,178.64 = 68,178.84/x
  3. Step 3: Cross multiply
    124,766.25x = 172,178.64 × 68,178.84
  4. Step 4: Simplify right side
    124,766.25x = 11,738,939,947.98
  5. Step 5: Solve for x
    x = 11,738,939,947.98/124,766.25
  6. Step 6: Final answer
    x = 94,087.46

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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.