Home / 147,821.64-221,631.28-53,049.72

Finding the Fourth Proportional to 147,821.64, 221,631.28 and 53,049.72

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Solution

The fourth proportional to 147,821.64, 221,631.28 and 53,049.72 is: 79,538.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,821.64 : 221,631.28 = 53,049.72 : x
  2. Step 2: Convert to fraction form
    147,821.64/221,631.28 = 53,049.72/x
  3. Step 3: Cross multiply
    147,821.64x = 221,631.28 × 53,049.72
  4. Step 4: Simplify right side
    147,821.64x = 11,757,477,347.24
  5. Step 5: Solve for x
    x = 11,757,477,347.24/147,821.64
  6. Step 6: Final answer
    x = 79,538.27

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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.