Home / 192,421.18-288,708.37-74,060.74

Finding the Fourth Proportional to 192,421.18, 288,708.37 and 74,060.74

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Solution

The fourth proportional to 192,421.18, 288,708.37 and 74,060.74 is: 111,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,421.18 : 288,708.37 = 74,060.74 : x
  2. Step 2: Convert to fraction form
    192,421.18/288,708.37 = 74,060.74/x
  3. Step 3: Cross multiply
    192,421.18x = 288,708.37 × 74,060.74
  4. Step 4: Simplify right side
    192,421.18x = 21,381,955,526.39
  5. Step 5: Solve for x
    x = 21,381,955,526.39/192,421.18
  6. Step 6: Final answer
    x = 111,120.59

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1.5x scale

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.