Home / 147,866.55-221,718.83-72,821.67

Finding the Fourth Proportional to 147,866.55, 221,718.83 and 72,821.67

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Solution

The fourth proportional to 147,866.55, 221,718.83 and 72,821.67 is: 109,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,866.55 : 221,718.83 = 72,821.67 : x
  2. Step 2: Convert to fraction form
    147,866.55/221,718.83 = 72,821.67/x
  3. Step 3: Cross multiply
    147,866.55x = 221,718.83 × 72,821.67
  4. Step 4: Simplify right side
    147,866.55x = 16,145,935,106.94
  5. Step 5: Solve for x
    x = 16,145,935,106.94/147,866.55
  6. Step 6: Final answer
    x = 109,192.61

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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.