Home / 215,819.10-323,765.64-66,055.68

Finding the Fourth Proportional to 215,819.10, 323,765.64 and 66,055.68

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Solution

The fourth proportional to 215,819.10, 323,765.64 and 66,055.68 is: 99,094.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,819.10 : 323,765.64 = 66,055.68 : x
  2. Step 2: Convert to fraction form
    215,819.10/323,765.64 = 66,055.68/x
  3. Step 3: Cross multiply
    215,819.10x = 323,765.64 × 66,055.68
  4. Step 4: Simplify right side
    215,819.10x = 21,386,559,510.84
  5. Step 5: Solve for x
    x = 21,386,559,510.84/215,819.10
  6. Step 6: Final answer
    x = 99,094.84

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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.