Home / 147,381.12-221,071.68-53,835.84

Finding the Fourth Proportional to 147,381.12, 221,071.68 and 53,835.84

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Solution

The fourth proportional to 147,381.12, 221,071.68 and 53,835.84 is: 80,753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,381.12 : 221,071.68 = 53,835.84 : x
  2. Step 2: Convert to fraction form
    147,381.12/221,071.68 = 53,835.84/x
  3. Step 3: Cross multiply
    147,381.12x = 221,071.68 × 53,835.84
  4. Step 4: Simplify right side
    147,381.12x = 11,901,579,593.01
  5. Step 5: Solve for x
    x = 11,901,579,593.01/147,381.12
  6. Step 6: Final answer
    x = 80,753.76

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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.