Home / 132,018.45-198,117.92-72,895.67

Finding the Fourth Proportional to 132,018.45, 198,117.92 and 72,895.67

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Solution

The fourth proportional to 132,018.45, 198,117.92 and 72,895.67 is: 109,393.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,018.45 : 198,117.92 = 72,895.67 : x
  2. Step 2: Convert to fraction form
    132,018.45/198,117.92 = 72,895.67/x
  3. Step 3: Cross multiply
    132,018.45x = 198,117.92 × 72,895.67
  4. Step 4: Simplify right side
    132,018.45x = 14,441,938,517.41
  5. Step 5: Solve for x
    x = 14,441,938,517.41/132,018.45
  6. Step 6: Final answer
    x = 109,393.33

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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.