Home / 124,808.80-172,238.64-68,222.56

Finding the Fourth Proportional to 124,808.80, 172,238.64 and 68,222.56

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Solution

The fourth proportional to 124,808.80, 172,238.64 and 68,222.56 is: 94,148.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,808.80 : 172,238.64 = 68,222.56 : x
  2. Step 2: Convert to fraction form
    124,808.80/172,238.64 = 68,222.56/x
  3. Step 3: Cross multiply
    124,808.80x = 172,238.64 × 68,222.56
  4. Step 4: Simplify right side
    124,808.80x = 11,750,560,951.72
  5. Step 5: Solve for x
    x = 11,750,560,951.72/124,808.80
  6. Step 6: Final answer
    x = 94,148.50

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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.