Home / 147,816.20-221,675.70-54,309.80

Finding the Fourth Proportional to 147,816.20, 221,675.70 and 54,309.80

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Solution

The fourth proportional to 147,816.20, 221,675.70 and 54,309.80 is: 81,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,816.20 : 221,675.70 = 54,309.80 : x
  2. Step 2: Convert to fraction form
    147,816.20/221,675.70 = 54,309.80/x
  3. Step 3: Cross multiply
    147,816.20x = 221,675.70 × 54,309.80
  4. Step 4: Simplify right side
    147,816.20x = 12,039,162,931.86
  5. Step 5: Solve for x
    x = 12,039,162,931.86/147,816.20
  6. Step 6: Final answer
    x = 81,446.84

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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.